Factorisation 2

Factorise 5a+5b

• (a+b)

• 5(a+b)

• 5a + b

• a + 5b

Factor
4b⁵+4b³+16b²

• 4b³(b⁴+b²+4b)
• 4b³(b⁴+4b+5)
• 4(b⁵+b³+4b²)
• 4b²(b³+b+4)

Which of these are common factors of this expression: 21x²y + 35xy⁷ - 70x²y² ?

• 7

• x

• y

• x²

Which of these are common factors of this expression: 600a + 25ab² - 75a²b⁵ ?

• a

• b

• 25

• ab

Factorise 15x-9x² completely

• 15x(1-3x)

• 3x(5x-9x)

• 5x(3-3x)

• 3x(5-3x)

Factorise completely ax²y - 2ax²z

• 2ax²(y-2z)

• ax²(y-2z)

• ax(yx-2xz)

• a(xy-2x²z)

Factorise completely: xh + xk + yh + yk

• (h + k)(x + y)

• (h + x)(y + k)

• h(x + y + k)

• (hk)(x + y)

Factorise completely ax - ay - bx + by

• (a + b)(x + y)

• (a - b)(x + y)

• (a + b)(x - y)

• (a - b)(x - y)

Factorise completely ms + 2mt² - ns - 2nt²

• (s+2t²)(m+n)

• (s-2t²)(m-n)

• (s+2t²)(m-n)

• (s+2t)(m-n²)

Factorise completely: 6ax + 2bx + 3ay + by

• (3x+b)(2a+y)

• (3a+b)(2x+y)

• (3a+y)(2x+b)

• (3x+y)(2a+b)