Solve Quadratic by Graphing and Factoring

Find the x-intercepts: 7x² - 54x + 35 = 0

• x = 5/7 and x = 7

• x = 5 and x = 7

• x = 5/7 and x = -7

Tags

CCSS.HSA-REI.B.4B

Find the zeros by factoring. h(x) = x² + 6x + 9

• (-3,0)

• (3,0)

• (-3,1)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Find the zeros by factoring.

g(x) = 2x² + 9x + 4

• (-4,1) and (-1/2, 0)

• (-4,0) and (-1/2, 0)

• (4,0) and (-1/2, 0)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Find the zeros of this quadratic.

• 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!

• -2, 4

• -8

• ±8

• No real solution

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5

• x = 20 and x = -9

• x = 4 and x = 5

• x = -4 and x = 5

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

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)

Solve by factoring.

x² + 15x + 44 = 0

• {-8, 2}

• {-7, 5}

• {-11, -4}

• {-11}

Tags

CCSS.HSA-REI.B.4B