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Quadratic Equation Solver with steps

Solve quadratic equations by square roots, factoring or the quadratic formula. Type your problem: see the answer, then every step with the reason. Free, no sign-up.

Solved examples

Each one solved step by step, with the reason for every step.

Solve x^2 + 5x + 6 = 0 x = −2 or x = −3
Solve x^2 = 49 x = 7 or x = −7
Solve (x - 2)^2 = 9 x = 5 or x = −1
Solve x^2 + 6x = 7 by completing the square x = 1 or x = −7
Solve x^2 = 25 x = 5 or x = −5
Solve 2x^2 - 8 = 0 x = 2 or x = −2
Solve x^2 + 4x = 5 by completing the square x = 1 or x = −5
Solve x^2 - 36 = 0 x = 6 or x = −6
Solve x^2 - 2x = 3 by completing the square x = 3 or x = −1
Solve x^2 + 8x = 9 by completing the square x = 1 or x = −9
Solve x^2 - 6x = 16 by completing the square x = 8 or x = −2
Solve x^2 - 7x + 10 = 0 x = 2 or x = 5
Solve x^2 + 2x = 8 by completing the square x = 2 or x = −4
Solve x^2 - 4x = 0 x = 0 or x = 4
Complete the square: x^2 - 4x - 5 = 0 x = 5 or x = −1
Solve x^2 + 6x = 7 x = 1 or x = −7

Learn how to do it yourself

Quadratic equations · Algebra 1 · 22 problems, printable worksheet
Completing the square · Algebra 1 · 20 problems, printable worksheet