Solving Polynomial Equations by Factoring

Solve: 14m²-12m = 0

(Hint: Factor 2m out of both terms.)

• m=2 and m=76

• m=2 and m=0

• m=14 and m=12

• m=0 and m=6/7

Tags

CCSS.HSA-REI.B.4B

Solve by Factoring:  4x² + 11x - 3 = 0

• x = -3/4 and x = -1
• x = 4 and x = 3
• x = 1/4 and x = -3
• x = -1/4 and x = 3

Tags

CCSS.HSA-REI.B.4B

What are the solutions?

(Hint: Factor 3x out of all terms first.)

• x=0, x=-2 and x=7

• x=2 and x=7

• x=-2 and x=7

• x=0 and x=3 and x= 42

Tags

CCSS.HSA-REI.B.4B

Solve

x² + 2x - 20 = 4

(Hint: Set the equation = 0)

• x = 6, x = -4

• x = -6, x = 4

• x = 12, x = -2

• x = 8, x = -3

Tags

CCSS.HSA-REI.B.4B

Solve 16a² - 9 = 0

(Hint: Use difference of squares when factoring.)

• a = ^-3/₄, ³/₄ 
• a = ^-4/₃, ⁴/₃ 
• a = ^-9/₁₆, ⁹/₁₆ 
• a = ^-16/₉, ¹⁶/₉ 

Tags

CCSS.HSA-REI.B.4B