Worksheets

Quadratic equations

Level 1 · Square roots and factorised form

Type your answers and press Check. Each answer is marked at once.

Solve the equations.

Both solutions, in any order. Write square roots as √ or sqrt.

1.
x2=64x^2 = 64
2.
x2=144x^2 = 144
3.
x2−16=0x^2 - 16 = 0
4.
x2−81=0x^2 - 81 = 0
5.
3x2=1083x^2 = 108
6.
4x2=644x^2 = 64
7.
(x+7)(x+3)=0(x + 7)(x + 3) = 0
8.
(x−9)(x−7)=0(x - 9)(x - 7) = 0
9.
x(x+6)=0x(x + 6) = 0
10.
x(x+4)=0x(x + 4) = 0