Form 2 Math 2.1 Part 1

The factors of 6x are

• 1 ,2, 3, 6, x, 2x, 3x, 6x

• 1, 2, 6, x, 2x, 6x

• 1, 3, 6, x, 3x, 6x

• 1, 2, 3, 6, x, 2x, 6x

The factors of 3ab are

• 1, 3ab

• 1, 3, a, b

• 1, 3, a, 3a, b, 3b

• 1, 3, a, 3a, b, 3b, ab, 3ab

The common factors of 2x and 4xy are

• 1 and 2

• 1, 2 and x

• 1, 2, x and 2x

• 1, 2, x and y

• 1

• 1 and 3

• 1, 3 and f

• 1, 3 and e

Determine the HCF for 6y and 24yz.

• 6y

• 3y

• 2y

• y

Determine the HCF for 14p and 28pq.

• 14p

• 7p

• p

• 14

Factorise 4x+16.

• 4(x+4)

• 4(x+8)

• 2(2x+8)

• 2(2x+4)

• (a+1)(a-1)

• (a+1)(a+1)

• (a-1)(a-1)

• a(a+1)

• (3x-10)(3x+10)

• (9x+10)(9x-10)

• (9x+10)(9x+10)

• (9x-10)(9x-10)

• 2(w+5)(w-5)

• 2(w+5)(w+5)

• 2(w-5)(w-5)