Algebra - factorising - equations

Factorise fully: ab + 4b

• a(b+4)
• b(a+4)
• ab(1+4)
• b(a+4b)

Factorsie fully: 20x + 30

• 10(2x+3)
• 10(x+3)
• 5(4x+6)
• 2(10x+15)

Tags

CCSS.7.EE.A.1

Factorise: 4x² + 8x

• 4x(x+2)
• 4(x²+2x)
• 2x(2x+4)
• 2(2x²+4)

Factor
x² + 9x - 36

• (x + 12)(x - 3)
• (x + 9)(x - 4)
• (x - 12)(x + 3)
• (x - 9)(x - 4)

Factor:
p² - 14p

• p(1 - 14)
• 2p(p - 7)
• p²(1-14)
• p(p - 14)

Solve by factoring.
z² - 18z + 81 = 0

• z = 9
• z = -9
• z = 9 or z = -9
• z = 6

Tags

CCSS.HSA-REI.B.4B

Factorise the expression:

x² + 5x + 6

• (x + 3)(x + 2)

• (x + 2)(x - 3)

• (x + 5)(x + 1)

• (x - 2)(x - 3)

Factorise the expression:

x² - 16

• (x - 4)²

• (x - 2)(x + 8)

• (x + 4)(x - 4)

• (x - 4)(x - 4)

Tags

CCSS.HSA.APR.C.4

Which equation has x = 2 as a solution?

• 3 + x = 10
• 11 + x = 13
• 4x = 32
• 5x =25

Tags

CCSS.6.EE.B.5

Which expression is equivalent to
v + v + v + v + v?

• 5v
• v⁵
• v + 5
• v5

Tags

CCSS.6.EE.A.4