Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**justlookingforthemoment****Moderator**- Registered: 2005-05-26
- Posts: 2,161

**Expanding two factors**

Expand and simplify the following:

1. 4(x + 3)

2. 3(x + 7)

3. 8(x - 2)

4. 5(x - 4)

5. 3x(x + 6)

6. 7x(x + 2)

7. -4x(x + 2)

8. -5x(x + 3)

9. -6x(x - 1)

10. -2x(x - 5)

11. x(2x + 1) + 5(x - 12)

12. 3(x² + 4) - 2(6x - 9)

13. 6x(2x² - x) - 3(x - 7)

14. (x + 1)(x + 3)

15. (x + 2)(x + 7)

16. (x + 4)(x - 2)

17. (x - 8)(x - 3)

18. (2x - 1)(3 - 2)

19. (6x + 2)(2x - 5)

20. (3x - 4)(x - 2)

21. Robin's rug is (2y + 2) metres long and y metres wide. Find the surface area the rug would cover, in terms of y.

22. A plank of wood has a length of (4x + 2)cm and a width of (x + 3)cm. Find the area of the plank, in terms of x.

Offline

**Toast****Real Member**- Registered: 2006-10-08
- Posts: 1,321

Offline

Pages: **1**