Solve Quadratic Equations

Solve the equation by factoring:

5x² + 30x = 0

• x = 1/6, x = 5

• x = -6, x = 0

• x = 6, x = 0

• x = 5, x = 30

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring:

x² + 8x + 7 = 0

• x = -1, x = -7

• x = 1, x = 7

• x = 1, x = 8

• x = -1, x = 8

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring:

x² + 3x = 54

• x = 6, x = 9

• x = -6, x = 9

• x = -9, x = 6

• x = -6, x = -9

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring:

5x² + 2x - 3 = 0

• x = 1/5, x = -1

• x = 2/5, x = 3

• x = 3/5, x = -1

• x = 5/2, x = 1

Tags

CCSS.HSA-REI.B.4B

Solve by completeing the square:

x² + 16x = 9

• x = -8 ± √73

• x = 8 ± √70

• x = 4 ± √73

• x = -6 ± √29

Tags

CCSS.HSA-REI.B.4B

Solve by completing the square:

x² - 10x = -29

• -5 ± 3i

• 5 ± 3i

• -5 ± 2i

• 5 ± 2i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve the equation by completing the square:

x² - 2x = 3

• x = -2 ± i√3

• x = 3 ± i√2

• x = -1, x = 3

• x = -3, x = 1

Tags

CCSS.HSA-REI.B.4B

Solve the equation by completing the square:

x² +8x = -22

• x = -4 ± i√6

• x = 4 ± i√22

• x = -8 ± i√22

• x = 8 ± √22

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve by using the quadratic formula:

-3y² + 2y + 8 = 0

• y = -1/2, y = -2

• y = 1/2, y = -4

• y = -3/4, y = 2

• y = -4/3, y = 2

Tags

CCSS.HSA-REI.B.4B

Solve the equation by using the quadratic formula:

y = x² - 2x - 2

• y = 1 ± √5

• y = 1 ± √3

• y = -1 ± √3

• y = 2 ± √5

Tags

CCSS.HSA-REI.B.4B