Foiling and Factoring

Factor x² - 10x + 24

• (x + 4)(x + 6)

• (x - 4)(x - 6)

• (x - 12)(x + 2)

• (x + 13)(x + 1)

Factor x² - 9x - 22

• (x -12)(x + 3)

• (x - 22)(x - 1)

• (x - 11)(x + 2)

• (x + 11)(x - 2)

Factor x² + 6x - 27

• (x - 9)(x + 3)

• (x - 12)(x + 6)

• (x + 4)(x + 2)

• (x + 9)(x - 3)

Factor x² - 10x + 25

• (x - 5)(x + 5)

• (x + 5)²

• (x - 20)(x + 5)

• (x - 5)²

Factor:x² - 25

• ( x + 5 ) ( x - 5 ) 

• ( x - 5 ) ( x - 5 ) 

• ( x + 5 ) ( x + 5 ) 

• Prime

What are the factors of
25x² - 81?

• (5x - 9)(5x + 9)

• (5x - 9)(5x - 9)

• (5x + 9)(5x + 9)

• Cannot be factored

Factor completely:
 3x² + 5x - 12

• (3x + 4)(x-3)

• (3x - 4)(x + 3)

• (3x + 3)(x -4)

• (3x - 3)(x + 4)

Factor Completely:
3x² + 18x +15

• 3(x² + 6x + 5)

• (x + 5)(x + 1)

• 3(x + 5)(x + 1)

• Prime

Expand the expression: (a + 2)(a + 2)

Expand the expression: (b + 6)(b + 2)