Reviewing Quadratic Formula and Factoring

Why is there a + with a - in front of the square root sign?

• It's a new operation

• you just pick one to use

• you use both, once with +, once with -

• eh, whatever

Tags

CCSS.HSA-REI.B.4B

• x = 3 & x = -2

• x = -3 & x = 2

• x = 1/3 & x = -1/2

• x = 4 & x = 6

Tags

CCSS.HSA-REI.B.4B

x² + 2x - 24 = 0

• x = -6, x = 4

• x = 6, x = -4

• x = 12, x = -2

• x = 8, x = -3

Tags

CCSS.HSA-REI.B.4B

4x² - 25

• (2x + 5) (2x - 5)

• (2x - 5)²

• (2x + 5)²

• 2x + 5(2x - 5)

Tags

CCSS.HSA.APR.C.4

• -3,-1

• 3,1

• 3,-1

• -1

Tags

CCSS.HSA-REI.B.4B

Factor the expression 4x²-21x-18

• (x+6)(4x-3)

• (4x-6)(x-3)

• (x-6)(4x-3)

• (4x+3)(x-6)

Solve the equation (x+5)(x-10)=0

• {5, -10}

• x²-5x-50

• {-5, 10}

• no solution

Tags

CCSS.HSA-REI.B.4B

Factor the expression x² + 6x + 5

• (x+6)(x-1)

• (x+1)(x+5)

• {-6, 1}

• {-5, -1}

• 1, 5

• -5, -1

• -5, 1

• -1, 5

Tags

CCSS.HSA-REI.B.4B

(x + 7)(x + 9)

• x² + 63x + 16

• x² + 16x + 63

• x² + 79

• x² + 16x + 2

Tags

CCSS.HSA.APR.A.1