Quiz: Solve by Factoring and Square Roots

When you solve a quadratic you are finding the __________ of the parabola.

• y-intercepts

• zeros

• slope

• parabola

The zeros are shown in the graph. Which of the following would be the factors?

• $\left(x-2\right)\left(x-6\right)=0$

• $\left(x+2\right)\left(x+6\right)=0$

• $y=x^2-8x+12$

• $y\ =\ x^2+8x+12$

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

Solve by factoring: x² + 3x - 18 = 0

• x = -3 and x = 6
• x = 3 and x = -6
• x = -9 and x = 2
• x = 9 and x = -2

Tags

CCSS.HSA-REI.B.4B

Solve by Factoring

3x² + 5x + 2 = 0

• x = -2/3 and x = -1

• x = -3/2 and x = -1

• x = 2/3 and x = 1

• x = 2/3 and x = -1

Tags

CCSS.HSA-REI.B.4B

Solve by Factoring

4x² + 11x - 3 = 0

• x = -3/4 and x = -1

• x = 4 and x = 3

• x = 1/4 and x = -3

• x = -1/4 and x = 3

Tags

CCSS.HSA-REI.B.4B

The area of a rectangle is 66 feet squared. The width is x feet and the length is (x-5) feet. Find the value of the width.

• 11 feet

• 6 feet

• -11 feet

• -6 feet

x²-7x=0

• x= {-7, 0}

• x= {0, 7}

• x = {1, 7}

• x = {-1, 7}

Solve using square roots.

5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• b = 3

Tags

CCSS.8.EE.A.2

Solve by using Square Roots

9x² - 15 = 1

• x = ±4/3

• x= 4/3

• x= 3/4

• No Real Number Solutions

Tags

CCSS.HSA-REI.B.4B