Homework 2B 1-5 Factor Review

Factor
d² - 10d + 25

• (d + 5) (d - 5)
• (d - 15) (d + 10)
• (d + 5) (d - 20)
• (d - 5) (d - 5)

Tags

CCSS.HSA.APR.C.4

Factor
r² -16r + 60

• (r - 15)(r + 4)
• (r - 6)(r + 10)
• (r - 6)(r - 10)
• (r +30)(r - 2)

Tags

CCSS.HSA-REI.B.4B

To factor x²+13x+42, think of two numbers whose (blank) is 42 and whose (blank) is 13. 

• product, sum
• sum, product
• You guess until it is right

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

x² + 15x + 36

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

14y² - 7y

• y(14y - 7)
• 7y(2y)
• 7y(2y - 1)
• 14y(y - 2)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

2x² - 19x + 24

• (x - 4)(2x - 6)
• (x - 6)(2x - 4)
• (x + 8)(2x + 3)
• (x - 8)(2x - 3)

x² - 25

• (x - 5)(x + 5)
• (x - 5)(x - 5)
• (x - 25)(x - 1)
• (x + 25)(x -1)

3x² - 12y²

• 3(x + 2y)(x + 2y)
• 3(x² - 4y²)
• (3x - 4y)(x + 3y)
• 3(x - 2y)(x + 2y)

Tags

CCSS.HSA.APR.C.4

3x² + 9x

• (3x - 3)(x - 3)
• (3x + 3)(x + 3)
• 3(x² + 3)
• 3x(x + 3)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

25x² - 90x + 81

• (25x - 9)(x - 9)
• (5x + 9)(5x + 9)
• (5x - 9)²
• (5x + 9)(5x - 9)

Tags

CCSS.HSA.APR.C.4