Review of Solving Quadratics

Solve the equation by the factoring method: 6x² - 9x = 0

• x = 0 & x = 3

• x = 0 & x = -3/2

• x = 0 & x = 3/2

Tags

CCSS.HSA-REI.B.4B

Select the two answers that apply. Solve the equation: -9 + (3 - x)² = 7

• x= -3

• x = 1

• x = -1

• x = 7

Tags

CCSS.HSA-REI.B.4B

Solve the equation by completing the square: x² - 8x = 20

• x = 10 and x = -2

• x = -10 and x = -2

• x = 10 and x = 2

Tags

CCSS.HSA-REI.B.4B

Solve the equation using the Quadratic Formula:

2x² + 5x - 12 = 0

• x = -4 and x = -3/2

• x = -4 and x = 3/2

• x = 4 and x = -3/2

Tags

CCSS.HSA-REI.B.4B

Solve
2x² + 17x + 21 = 0

• x= ^-21/₂, -17
• x= ²/₃, 16
• x=-7, ^-3/₂
• x=15, -³/₇

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.
15 = 8x² - 14x

• x = -5 or x = 3/8
• x = -2/5 or x = 4/3
• x = -3 or x = 5/8
• x = -3/4 or x = 5/2

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

• √3
• ±√3
• -3
• No real solution

Tags

CCSS.HSA-REI.B.4B

• ±81
• ±9
• ±3
• No real solution

Tags

CCSS.8.EE.A.2

• -4, 2
• -2, 4
• -16
• -4

Tags

CCSS.HSA-REI.B.4B