Solving Quadratic Equations by factoring

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.A.1

CCSS.HSA.REI.B.4

Solve by factoring: x² = 7x + 18

• -7 and -18

• 9 and 2

• 9 and -2

• 2 and 7

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

Solve  $3x^2+3x-18=0$    by factoring. 

Hint: Factor the GCF first.

•  $\left\{-3,\ 2\right\}$  

•  $\left\{-2,\ 3\right\}$   

•  $\left\{-3,\ -2\right\}$  

•  $\left\{2,\ 3\right\}$  

Factor the equation  $4x^3-64x=0$  

Select ALL solutions

• x= -4

• x= 4

• x = 0

• x = 16

• No solutions

Solve the equation:
4x²+2x - 6 = 0

• x = 1 & -1.5
• x = -1 & 1.5
• x = (-2 ±√92)/8
• x = (-2 ± √100)/8

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4