Solving Quadratics by Factoring

Factor x²-16

• (x+4)²

• (x-4)²

• (x-16)(x+16)

• (x-4)(x+4)

Tags

CCSS.HSA.APR.C.4

Factor
k²+7x+10

• (k+2)(k+5)

• (k-2)(k-5)

• (k+10)(k+4)

• (k+2)(k-5)

Solve 5x² = 13x+6

• x = -3, x = 2/5

• x = -2, x = 15

• x = 3, x = -2/5

• x = 2, x = -15

Tags

CCSS.HSA-REI.B.4B

Solve 3x²+7x-6 = 0

• x = 3, x = -3/2

• x = 2/3, x = -7

• x = 3, x = -2/3

• x = -3, x = 2/3

Tags

CCSS.HSA-REI.B.4B

Solve: 14m²-12m = 0

• m=2 and m=76

• m=2 and m=0

• m=14 and m=12

• m=0 and m=6/7

Tags

CCSS.HSA-REI.B.4B

Solve: 28y² + 21y = 0

• y = 28 and y = 21

• y = 0 and y = -3/4

• y = 0 and y = 4

• y = 3 and y = 4

Tags

CCSS.HSA-REI.B.4B

Solve for x: x² + 8x - 20 = 0

• x = -10, 2

• x = -2, 10

• x = 2, 10

• x = -10, -2

Tags

CCSS.HSA-REI.B.4B

Solve for x: x² + 2x - 63 = 0

• x = -9, 7

• x = -9, -7

• x = -7, 9

• x = 7, 9

Tags

CCSS.HSA-REI.B.4B

Solve for x: 2x² + 4x - 30 = 0

*Hint: Factor out GCF FIRST!!!!*

• x = 3, 5

• x = -5, 3

• x = -5, -3

• x = -3, 5

Tags

CCSS.HSA-REI.B.4B

Solve for x: 3x² - 15x + 18 = 0

*Hint: Factor out GCF FIRST!!!!*

• x = 2, 3

• x = -3, -2

• x = -3, 2

• x = -2, 3

Tags

CCSS.HSA-REI.B.4B