Factoring GCF Binomials

Factor 7x + 21 using the GCF

• 7(x+3)

• 7x + 3

• 3(x + 7)

• x(7 + 3)

• 1(x - 5)

• x(x - 5x)

• x(x - 5)

• x²(1 - 5)

• 100x + 150

• 10(x + 5)

• 1(10x + 15)

• 5(2x + 3)

Factor:
14x + 20

• 2(7x + 10)

• 4(2x + 5)

8b - 32

• 8(b - 4)

• 8(b + 4)

• 4(2b - 8)

• 4(2b + 8)

-3y + 6

• 3(y - 2)

• -3(y - 2)

• -3(y + 2)

• 3(y + 2)

GCF of 28 and 40

• 2

• 4

• 7

• 8

factor completely 
81m² - 1 

• not factorable

• (m-9)(m+9)

• 9m(9m-1)

• (9m-1)(9m+1)

Factor completley:
25x²y² - 100

• ( 5xy - 10) (5xy + 10) 

• ( 5xy + 10) (5xy + 10) 

• Prime

• ( 5xy - 50) (5xy + 50) 

Determine if 16h² - 9a² is the difference of two squares and if it is, what are those factors?

• The expression is not a difference of squares. It is prime. 

• No, its not. The factors are
  (4h + 3a)²

• Yes it is. The factors are
   (4h + 3a) (4h - 3a)