Factorization by Grouping

Factorise 2x+8

• 2(x+4)
• 2(x+8)

Factorise 3x²+12x

• 3x(x+4)
• 3(x²+4)

Factorise x²+4x

• x(x+4)
• 4x(x+1)

Factorise: 12x² + 15x

• 6x(2x+3)
• 3(x²+5x)
• 4x(3x+5)
• 3x(4x+5)

Factorise these
4b⁵+4b³+16b²

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

6xy - 8x + 15y - 20

• (3y + 4)(2x - 5)
• (3y - 4)(2x + 5)
• (2y - 4)(3x + 5)
• (2y + 5)(2y - 4)

4b² - 12b + 2b - 6

• (b - 3)(4b + 2)
• 2(2b + 1)(b - 3)
• (4b + 3)(b - 2)
• (4b - 3)(b + 2)

What is the factored form of 2a³-2a²?
*Hint GCF

• 2a²(a)
• 2a(2a²-a)
• 2a²(a-1)
• 2a²(a+1)

Factor:
10x + 15

• 100x + 150
• 10(x + 5)
• 1(10x + 15)
• 5(2x + 3)

Tags

CCSS.7.EE.A.1

Factor
12x + 9

• 3(4x + 3)
• x(12+9)
• 3(4x - 3)
• not factorable

Tags

CCSS.7.EE.A.1