8.6 Solving Quadratics by Factoring!

Solve by factoring:

x² + 3x = 6 - 2x

• x = -6 & x = 1

• x = -1 & x = 6

• x = -2 & x = 3

• x = -3 & x = 2

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

2x² + 17x = 9

• x = -1/2 & x = 9

• x = -9 & x = 1/2

• x = 1/2 & x = 9

• x = -1 & x = 9/2

Tags

CCSS.HSA-REI.B.4B

What is the next step in solving after getting the quadratic in factored form?

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

• Plug in zero for x

• Multiply the binomials

• FOIL

• Set each binomial factor equal to zero

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:   2x² + 7x + 6 = 0

• x= 3/2 & x = 2

• x = -3/2 & x = -2

• x = 6 & x = 7

• x = -6 & x = -7

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: x² = 9x - 20

• x = -4 & x = -5

• x = 20 & x = -9

• x = 4 & x = 5

• x = -4 & x = 5

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:  4x² + 11x - 3 = 0

• x = -3/4 & x = -1

• x = 4 & x = 3

• x = 1/4 & x = -3

• x = -1/4 & x = 3

Tags

CCSS.HSA-REI.B.4B

Solve: n² = 2n

• n = 2 & n = 0

• n = -2 & n = 0

• n = 2
• n = 0

Tags

CCSS.HSA-REI.B.4B