Factoring and Solving Trinomials DL

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

Factor
x² -16x + 48

• (x - 12)(x - 4)
• (x + 6)(x - 8)
• (x + 12)(x - 4)
• (x -16)(x - 3)

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Solve

x² -16x + 48

• {12, 4}

• {-6, 8}

• {-12, 4}

• {16, 3}

Factor
3a² + 4a + 1

• (7a-10)(a-8)
• Not factorable
• (3a+1)(a+1)
• (3a-1)(a-1)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

 $Solve:$  $3a^2+4a+1$  

•  $\left\{\frac{10}{7},\ 8\right\}$  

• Prime

•  $\left\{-\frac{1}{3},\ -1\right\}$  

•  $\left\{\frac{1}{3},\ 1\right\}$  

Factor:
5x² + 17x + 6   

• (5x + 3)(x + 2) 
• (5x + 2)(x + 3) 
• (5x + 1)(x + 6) 
• (5x + 6)(x + 1) 

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

 $Solve:\ \ \ \ \ \ 5x^2+17x+6$ 

•   $\left\{-\frac{3}{5},\ -2\right\}$  

•   $\left\{-\frac{2}{5},\ -3\right\}$  

•  $\left\{-\frac{1}{5},\ -6\right\}$  

•  $\left\{-\frac{6}{5},\ -1\right\}$  (5x + 6)(x + 1) 

Solve the equation by factoring:

x² -6x + 8 = 0

• {2, 4}

• {-2, -4}

• {-2, 4}

• {2, -4}