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What our customers say...
Thousands of users are using our software to conquer their algebra homework. Here are some of their experiences:
I was quite frustrated with handling complex numbers. After using this software, I am quite comfortable with it. Complex numbers are no more 'COMPLEX' to me.
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Congratulations & Thanks for this wonderful piece of software. It is both challenging and fun.
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Quadratic Formula Calculator
What do you want to calculate?
Example: 2x^2-5x-3=0
Step-By-Step Example
Learn step-by-step how to use the quadratic formula!
Example (Click to try)
2x2−5x−3=0
About the quadratic formula
Solve an equation of the form ax2+bx+c=0 by using the quadratic formula:
x=
−b±√b2−4ac
2a
Quadratic Formula Video Lesson
Solve with the Quadratic Formula Step-by-Step [1:29]
Need more problem types? Try MathPapa Algebra Calculator