Solving Equations

Solve
x² + 13x + 12 = 0

• x = -12, -1
• x = 12, 1
• x = 13, 1
• x = -13, -1

Tags

CCSS.HSA-REI.B.4B

What is another way to say "where a function crosses the x-axis"?

• x-intercept
• zero
• root
• all of these.

Tags

CCSS.HSA.APR.B.3

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

• Get factored form
• Find two numbers which add to make 6 and multiply to make -13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

Convert x² - 9x + 20 = 0 to factored form and solve.

• (x-10)(x+2); x = -2, 10

• (x+4)(x+5); x = -5, -4

• (x-4)(x-5); x = 4, 5

• Not factorable

Solve for x:
8x - 10 = -34

• 4
• 3
• -3
• -24

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Solve the polynomial equation and determine which graphis correct.

• 
• 
• 
• 

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Solve (x²-9) = 0

• x = 9

• x = 9, -9

• x = 3, -3

• x = 3

Tags

CCSS.8.EE.A.2

Solve by factoring: 3x⁴-6x²+3 = 0 (Hint: take out the GCF)

• { -1 d.r, 1 d.r}

• { - 1, 1}

• { 3 d.r, -3 d.r}

• {3, -3}

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Solve: t²+7t+6 = 0

• {-6, -1}

• {2, -3}

• {6, 1}

• {-2, 3}

Tags

CCSS.HSA.REI.B.4