Factoring Quads

Solve by factoring:

x² - 9x + 20 = 0

• x = -4, -5

• x = 20, -9

• x = 4, 5

• x = -4, 5

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

x² + 3x - 18 = 0

• x = -3, 6

• x = 3, -6

• x = -9, 2

• x = 9, -2

Tags

CCSS.HSA-REI.B.4B

Factor and solve:

k²+7x+10

• (k+2)(k+5)

  k = -2, -5

• (k-2)(k-5)

  k = 2, 5

• (k+10)(k+4)

  k = -10, -4

• (k+2)(k-5)

  k = -2, 5

Tags

CCSS.HSA-REI.B.4B

Factor and solve: 3x² - 6x - 24

• 3(x - 2)(x + 4)
  x = 2, -4

• 3(x + 2)(x - 4)
  x = -2, 4

• (x + 9)(2x + 7)

• (x - 9)(2x - 7)

• (x + 7)(2x + 9)

• (x - 7)(2x - 9)

What is a quadratic function in factored (intercept) form with x-intercepts of 5 and -2

• f(x) = x² + 3x -10

• f(x) = (x + 5)(x - 2)

• f(x) = (x - 5)(x + 2)

• f(x) = (x + 1.5)² - 12.25

Factor:
x² - 16

• Prime

• ( x - 4) ( x + 4) 

• ( x - 8) ( x + 8) 

• ( x - 4) ( x - 4) 

Tags

CCSS.HSA.APR.C.4

Factor and solve:

x² - 9x + 20

• (x-10)(x+2)

  x = -2, 10

• (x+4)(x+5)

  x = -5, -4

• (x-4)(x-5)

  x = 4, 5

• Not factorable

Tags

CCSS.HSA-REI.B.4B

• x = -4, 2

• x = -2, 4

• x = -16

• x = -4

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

5x² + 13x + 6 = 0

Tags

CCSS.HSA-REI.B.4B