In this worksheet, we will practice solving complicated equations by making substitutions that reduce the equation to a quadratic.

**Q1: **

Factorise fully .

- A
- B
- C
- D

**Q3: **

Find the solution set of .

- A
- B
- C
- D
- E

**Q4: **

Factorise fully .

- A
- B
- C
- D

**Q5: **

Find the solution set of .

- A
- B
- C
- D
- E

**Q6: **

Find the solution set of .

- A
- B
- C
- D
- E

**Q7: **

Consider the equation . Adding to both sides produces

Is the solution set of the equation formed the same as that of the original equation?

- Ayes
- Bno

**Q9: **

Factorise fully .

- A
- B
- C
- D
- E

**Q10: **

Factorise fully .

- A
- B
- C
- D

**Q11: **

Find the solution set of .

- A
- B
- C
- D
- E

**Q12: **

Find the solution set of .

- A
- B
- C
- D
- E