Solving Polynomial Equations by Graphing and Factoring

Solve by factoring!

• -2, 4

• -8

• ±8

• No real solution

Tags

CCSS.HSA-REI.B.4B

What are the solutions of this graph?

• -2 and 3

• -1/2 and -6

• -2 and -6

• 3 and -6

Factor: 25x² - 9

• (5x - 3)(5x + 3)

• (x + 5)(x - 3)

• (x - 3)(x + 5)

• (5x + 3)(3x + 5)

Tags

CCSS.HSA.APR.C.4

Factor

3v² - 4v - 7

• (3v+1)(v-10)

• 3(v-7)(v-1)

• (3v+1)(v-9)

• (3v-7)(v+1)

x² + 9x - 36

• (x + 9)(x - 4)

• (x + 12)(x - 3)

• (x - 12)(x + 3)

• (x - 9)(x - 4)

Find the factors of 5x²+20x+20

(Hint: Look for GCF first)

• 5(x+2)(x+2)

• 5(x-2)(x-2)

• 5(x+2)(x-2)

• (5x+2)(x+2)

• b=4/5, b=3

• b=4, b=-3

• b=1/5, b=3

• b=4/5, b=-3

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.

x² + 15x + 44 = 0

• {-8, 2}

• {-7, 5}

• {-11, -4}

• {-11}

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

Convert to factored form:

f(x) = x²+3x-18

• (x-6)(x+3)

• (x+6)(x+3)

• (x+6)(x-3)

• (x-6)(x-3)