Solving Quadratics robert m

Solve by factoring: x² = 7x + 18

• -7 and -18

• 9 and 2

• 9 and -2

• 2 and 7

Tags

CCSS.HSA-REI.B.4B

Solve for x:

(x-5)(x+6)=0

• {5,5 }

• {5,-6 }

• { -5,-5 }

• { -5,-6 }

Tags

CCSS.HSA-REI.B.4B

2x²+ 7x + 6 = 0

• x = -3/2 and x = -2

• x = 6 and x = 7

• x = -6 and x = -7

• x= 3/2 and x = 2

Tags

CCSS.HSA-REI.B.4B

What is the first step in solving (x + 2)(x - 3) = 0      ?

• FOIL

• Set each binomial factor equal to zero

• Solve for x

• Plug in zero for x

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: x² - 9x = 0

• 9

• -9

• 0, 9

• -9, 0

Tags

CCSS.HSA-REI.B.4B

What are the factors AND solutions of x² + 2x – 3 = 0

• (x - 2)(x + 1); x=2, x=-1

• (x - 1)(x + 3); x=1, x=-3

• (x + 2)(x - 1); x=-2, x=1

• (x + 1)(x - 3); x=-1, x=3

Tags

CCSS.HSA-REI.B.4B

What property would you use to solve the following? (x-3)(x+2)=0

• Associative Property

• Zero Product Property

• Inverse Property

• Commutative Property

Tags

CCSS.HSA-REI.B.4B

Solve using Zero-Product Property.

(2x - 2)(5x + 5) = 0

• x = -1 or x = 1

• x = -1

• x = 1

• x = -2 or x = 5

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.

n² - 2n = 0

• n = 2 and 0

• n = -2 and 0

• n = 2

• n = 0

Tags

CCSS.HSA-REI.B.4B

What should you do first in solving this equation? x² + 6x - 13 = 3

• Find two numbers which add to make 6 and multiply to make -13

• Make it equal 0 by subtracting 3 on each side

• Type it all in a calculator.

• Get factored form

Tags

CCSS.HSA-REI.B.4B