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Last updated on: 2026-06-06
Android Apps > Education > Quadratic Equation Solver
Quadratic Equation Solver icon

Quadratic Equation Solver

1.4.2
K. Dev
4.37
1,463 reviews
100,000+
Downloads
Free

Solves quadratic equations/ formulas and gives you the step-by-step solution

Not recently updated — last update was on 2018-09-02. This app may no longer be actively maintained.
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About Quadratic Equation Solver

Quadratic Equation Solver is an education app developed by K. Dev.

Download Statistics

Quadratic Equation Solver has been downloaded 410 thousand times. In the last 30 days, the app was downloaded 10 times.

User Ratings

Quadratic Equation Solver is rated 4.37 out of 5 stars. The rating is based on 1.5 thousand ratings.

App Information

Quadratic Equation Solver is FREE to download. The APK download size is 2.92 MB. The latest version available is 1.4.2. The last update was on September 2, 2018.

Technical Requirements

Quadratic Equation Solver requires Android 4.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play August 2016.

Description
This is a smart application which solves quadratic equations or formulas and gives you the step-by-step solution. Unlike most of the other apps, this app is featured with both "Quadratic Formula" and "Completing the square" methods.


★ Capable of generating graphs for a given equation.

★ Both "Quadratic Formula" and "Completing the square" methods available.

★ Ability to save step-by-step solution as an image.

★ User friendly interface with Material design.

★ Decimal and fractional number inputs.

★ Decimal and fractional number output.

★ Handles imaginary numbers.

★ Each variable input is a simple calculator supporting the following operators ( *, /, +, -).

★ Lightweight.


NOTE : Quadratic equations are of the form ax2+bx+c=0 where a, b and c are real numbers and "a" should not be equal to zero. Quadratic equations have two solutions. It is possible that one solution may repeat. You can calculate quadratic equations by Completing the square and by Quadratic Formula.

Solving by Competing the Square

• Keep all terms containing x on one side. Move the constant to the right.

• Get ready to create a perfect square on the left. Balance the equation.

• Take half of the x-term coefficient and square it. Add this value to both sides.

• Simplify and write the perfect square on the left.

• Take the square root of both sides. Be sure to allow for both plus and minus.

• Solve for x.


Solving by Quadratic Formula

The solutions of some quadratic equations are not rational, and cannot be factored. For such equations, the most common method of solution is the quadratic formula. The quadratic formula can be used to solve ANY quadratic equation.

Recent changes:
V 1.4.2
+ Performance improvements
+ Released the PRO version. You can get it for FREE until 5th-Sep-2018.

V 1.3.0
+ New settings screen for app settings

V 1.2.7
+ Landscape mode is supported.
+ Performance improvements
+ New languages added [Spanish, Russian, Portuguese]
+ Ads will be displayed (but if you want, you can request the ad-free version for free)
Show more Show less

More data about Quadratic Equation Solver

Price Free to download
Total downloads 410 thousand
Recent downloads 10
Rating 4.37 based on 1.5 thousand ratings
Ranking Not ranked
Version 1.4.2
APK size 2.92 MB
Number of libraries 5
Designed for Android 4.1+
Suitable for Everyone
Ads Contains ads

App Performance Report

Get a detailed PDF report for Quadratic Equation Solver with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

Get PDF Report — $29

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Quadratic Equation Solver compared with similar apps

Keywords that only this app has

Square Solution Completing Free Solves Formulas Methods Fractional Perfect Left Sides Performance Improvements Version Settings

Common keywords of similar apps

Quadratic Equations Step Formula Equation App Decimal Number Numbers Solutions Solving Solve

Keywords missing from this app

Calculator Math Algebra Functions Roots Linear Operations Graphing Fraction Fractions Solver Function Find Enter Expressions Recent Scientific Problems Inequalities Results Variables Calculate Features Polynomial Simplification Complex Mathematical Easy Variable Factoring Graph History Type Detailed Students Calculators Steps Order

More from K. Dev

Linear Equation Solver icon Linear Equation Solver
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Quadratic Equation Solver PRO icon Quadratic Equation Solver PRO
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Google Play Rating history and histogram

1.1K
150
21
43
150

Downloads over time

Quadratic Equation Solver has been downloaded 410 thousand times. Over the past 30 days, it has been downloaded 10 times.

Changelog of Quadratic Equation Solver

  • Oct 30, 2018Installs100,000+ installs
  • Sep 2, 2018UpdateVersion 1.4.2
  • Jan 26, 2018Installs50,000+ installs
  • Dec 13, 2017UpdateVersion 1.4.1
  • Dec 3, 2017UpdateVersion 1.4
  • Feb 28, 2017Installs10,000+ installs
  • Jan 16, 2017UpdateVersion 1.3.2
  • Dec 25, 2016Installs5,000+ installs
  • Dec 18, 2016UpdateVersion 1.3.0
  • Oct 26, 2016UpdateVersion 1.2.7
  • Oct 24, 2016Installs1,000+ installs
  • Oct 15, 2016UpdateVersion 1.2.6
  • Oct 15, 2016UpdateVersion 1.2.5
  • Oct 6, 2016Installs500+ installs
  • Sep 11, 2016Installs100+ installs
  • Aug 30, 2016UpdateVersion 1.0.2
  • Aug 26, 2016Installs50+ installs
  • Aug 11, 2016Installs10+ installs
  • Aug 3, 2016New AppVersion 1.0 in EDUCATION for Free
Show more Show less

Developer information for K. Dev

K. Dev

kasun.bdn@gmail.com

N/A

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Comments on Quadratic Equation Solver for Android

★★★★★ kim Pangit · Sep 27, 2022
Its amazing Itsssss Sooo goodd to use in math and math classes and homework
★★★★☆ Anita Singh · Sep 4, 2021
It is good app but your solver is giving me wrong answers Like 35x²–20x–15 Here (7x+3)(5x–5)=35x²–20x–15 So zeroes are (X)first zero=–3/7 (X)second zero=5/5 So in second case it is giving zero value=1 And rounded off 5 So I used zeroes to find equation; (7x+3)(x–1) Which was=7x²–2x–3 But my equation was =35x²–20x–15 So has he eaten 5? If so then what if instead of eating 5 He eats (-1) Then this will be serious issue Because;; (-7x+3)(-x+1)=(7x-3)(x-1)
★★★★★ Abubakar Meraj · Dec 5, 2022
This app is the one of the best, but it is the only best solver ever I found. I love its feature of explaining the steps
★★★★★ SURAJ Rocks · Dec 29, 2021
Good aap for saving time from these shots called quadratic equations
★★★★★ CHERRY ALIMENTO · Nov 2, 2021
It really helps my son to answer his quadratic equation lessons. Especially his homework about problem-solving
★☆☆☆☆ Arnav Deshpande · Dec 29, 2021
For such a small task they're giving ads. That too not on mute. Ads start loudly in the middle of nowhere

Google Play Rankings for Quadratic Equation Solver

This app is not ranked

Technologies used by Quadratic Equation Solver

Quadratic Equation Solver is requesting 5 permissions and is using 7 libraries.

Permissions

Development tools
test access to protected storage
Your location
approximate (network-based) location
Network communication
view network connections, full network access
Storage
modify or delete the contents of your USB storage

Ad network libraries

AdMob Android Library IconAdMob

Social libraries

None found

Development tools

Android Jetpack core Android Library IconAndroid Jetpack core Android Architecture Components Android Library IconAndroid Architecture Components Firebase Android Library IconFirebase MPAndroidChart Android Library IconMPAndroidChart
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