Solving quadratic equations by completing the square | Maths

Starter quiz

Which of these is a solution for $(x - 3)^2 = 0$ ?
- $x = -3$
- $x = 3$ ✓
- $x = 0$
Which of these is a solution for $x^2 = 0$ ?
- $x = 0$ ✓
- $x = 1$
- There are no solutions.
Which of these is a solution for $(x - 4)(x + 2) = 0$ ?
- $x = -2$ ✓
- $x = 4$ ✓
- $x = -8$
- $x = 8$
The equation for this curve is $y=x^2 + 3x + 3$ . How many real solutions will it have?
- 0 ✓
- 1
- 2
Rearrange the following equation to make $m$ the subject: $3x - m = 9$
- $m = 9 - 3x$
- $m = 3x - 9$ ✓
- $m = 3(x + 9)$
Rearrange the following equation to make $x$ the subject: $3x - m = 9$
- $x = \frac{m + 9}{3}$ ✓
- $x = \frac{m - 9}{3}$
- $x = \frac{m + 3}{9}$