Solving trinomials

Solve m² + 12m - 64 =0.

• 16 and -4
• 9/2 and -3
• 4 and -16

Tags

CCSS.HSA-REI.B.4B

Solve the quadratic equation by factoring
a² + 10a + 21 = 0

• ± √21
• -3 , -7
• 3 , 7
• 28 , -7

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.
k² + 8k + 12 = 0

• -2, 2
• -2, 4
• -2, -6
• 2, 3

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring:
x² -6x + 8 = 0

• 2, 4
• -2, -4
• -2, 4
• 2, -4

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring:

n²+11n +30 = 0

• {-6, -5}

• {6, 5}

• {2, 15}

• {-15, -2}

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring:

x² + x - 6 = 0

• {-2, 3}

• {-2, -3}

• {2, -3}

• {-2}

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring:

p² + 5p + 4 = 0

• {-5, 0}

• {-4, -1}

• {-1, 4}

• {-4, 1}

Tags

CCSS.HSA-REI.B.4B

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

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

r² - 6r + 5 = 0

• r = 5 and 1
• r = 5 and -1
• r = -5 and 1
• r = -5 and -1

Tags

CCSS.HSA-REI.B.4B