Solving quadratic equations by factorising where rearrangement is required | Maths

Starter quiz

Factorise the expression $x^2 + 2x - 15$
- $(x - 3)(x + 5)$ ✓
- $(x + 3)(x - 5)$
- $(x + 15)(x - 1)$
Which of these is a solution for: $(x - 4)(x + 2) = 0$
- $x = 0$
- $x = 4$ ✓
- $x = -4$
- $x = 2$
Which of these is a solution for: $(x + 2)(x - 5) = 0$
- $x = 2$
- $x = -5$
- $x = 5$ ✓
- $x = 0$
Which of these is a solution for: $(x + 9)(x + 3) = 0$
- $x = 9$
- $x = 3$
- $x = -3$ ✓
- $x = -9$ ✓
Which of these is a solution for: $(x - 6)^2 = 0$
- $x = -6$
- $x = 6$ ✓
- $x = 0$
Factorise the expression $7x^2 + 42x - 49$
- $7(x + 1)(x - 7)$
- $7(x - 1)(x - 7)$
- $7(x - 1)(x + 7)$ ✓