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=1x^2 = 1
2.
x2=81x^2 = 81
3.
x2−121=0x^2 - 121 = 0
4.
x2−64=0x^2 - 64 = 0
5.
5x2=805x^2 = 80
6.
4x2=164x^2 = 16
7.
(x+4)(x+7)=0(x + 4)(x + 7) = 0
8.
(x+9)(x+8)=0(x + 9)(x + 8) = 0
9.
x(x−7)=0x(x - 7) = 0
10.
x(x+2)=0x(x + 2) = 0