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=100x^2 = 100
2.
x2=64x^2 = 64
3.
x2−100=0x^2 - 100 = 0
4.
x2−121=0x^2 - 121 = 0
5.
3x2=1083x^2 = 108
6.
5x2=1805x^2 = 180
7.
(x−7)(x−9)=0(x - 7)(x - 9) = 0
8.
(x−7)(x+9)=0(x - 7)(x + 9) = 0
9.
x(x+5)=0x(x + 5) = 0
10.
x(x+6)=0x(x + 6) = 0