Math Practice Topic: Quadratic Formula

Description: Solve quadratic equations that equal zero using the quadratic formula.

Adaptive Learning Progression: At higher levels, factoring is nearly impossible, so the quadratic formula must be used.

Sample Levels (out of 6)

Solve using the quadratic formula   x = (-b ± √b2 - 4ac) / 2a,   separating answers with commas. If there is no solution, write "no solution".

1.
x 2 - 16 = 0
x =

Solve using the quadratic formula   x = (-b ± √b2 - 4ac) / 2a,   separating answers with commas. If there is no solution, write "no solution".

1.
- 2x 2 - 10x + 3 = 0
x =
2.
3x 2 - 9x + 6 = 0
x =
3.
x 2 + 4x - 2 = 0
x =
4.
- 2x 2 - 7x + 6 = 0
x =

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