Solve by factoring and graphing

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

What are the solutions (x-intercepts, roots, zeros)?

• 0 and 8

• -2 and -4

• 3 and -1

• 2 and 4

Find the solutions to:

7(x-10)(3x+2) = 0

• x = 10 and x = -2/3

• x = 10 and x = -2

• x = 1 and x = -2/3

Find the x-intercepts: 7x² - 54x + 35 = 0 (Use Desmos if necessary)

• x = 5/7 and x = 7

• x = 5 and x = 7

• x = 5/7 and x = -7

Find the zeros (solutions, x-intercepts, roots) by factoring.

y = x² + 6x + 9

• (-3,0)

• (3,0)

• (-3,1)

Solve the quadratic equation by factoring
a² + 10a + 21 = 0

• √21 and -√21
• -3 , -7
• 3 , 7
• 28 , -7

What are the factors AND solutions of x² + 2x – 3 = 0

• (x - 2)(x + 1); x=2, x=-1
• (x + 1)(x - 3); x=-1, x=3
• (x + 2)(x - 1); x=-2, x=1
• (x - 1)(x + 3); x=1, x=-3

Tags

CCSS.HSA.APR.B.2

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Given the factors below what is the quadratic equation?

• y= 2x² -5x +3
• y= 2x² +7x -3
• y= 2x² -5x -3
• y= 2x² -7x -3

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.APR.B.2

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.B.3

x² + 15x + 44 = 0

• {-8, 2}
• {-7, 5}
• {-11, -4}
• {-11}

Tags

CCSS.HSA-REI.B.4B