Algebraic expressions

Simplify

5x - 2 + 2x - 4

• 3x - 6

• 7x + 6

• 7x - 6

• 7x - 8

Simplify 2x - 3(3 - 5x)

• 17x - 9

• 9 - 17x

• -3x - 9

• 17 x + 9

Factorise 6x - 9

• 3(2 - 3x)

• 3(2x - 3)

• -3x

• 3x

• (x - 2)(x + 6)

• (x + 2)(x - 6)

• (x + 2)(x + 6)

• (x - 4)(x + 3)

The first four terms of a sequence are

7 15 23 31

(a) Find the next term.

(b) Find the expression for the nth term.

• (a) 8

  (b) 8n

• (a) 39

  (b) 8n - 1

• (a) 39

  (b) n + 8

• (a) 38

  (b) 8n - 1