Factorising quadratics of the form ax^2 + bx + c | Maths

Starter quiz

Factorise the expression: $x^2 - x - 6$
- '(x - 3)(x + 2)' ✓
Factorise the expression: $x^2 + 9x +20$
- '(x + 4)(x + 5)' ✓
Factorise the expression: $x^2 - 4x + 4$
- '(x-2)(x-2)' ✓
Factorise the expression: $x^2 - 25$
- '(x - 5)(x + 5)' ✓
Factorise this expression: $x^2 - 6x + 9$
- $(x - 3)^2$ ✓
- $(x - 3)(x + 3)$
- $(x+9)(x-1)$
Factorise the expression: $x^2 + 6x + 9$
- $(x + 9)(x - 9)$
- $(x + 3)^2$ ✓
- $(x+2)(x+3)$