Solving Polynomial Equations by Factoring

Solve by factoring.

14x - 49x² = 0.

• x = 0, x = 7/2

• x = -2/7, x = 2/7

• x = 0, x = 2/7

• x = 2, x = 7

Tags

CCSS.HSA-REI.B.4B

Solve by factoring. (Hint---distribute first!)

x(x + 1) = 2

• x = -2, x = 1

• x = 2, x = -1

• x = 0, x = 2

• x = 0, x = 1

Tags

CCSS.HSA-REI.B.4B

What should you do first in solving this equation?

x² + 6x - 13 = 3

• Get factored form

• Write down: a=1, b=6, c=-13

• Make it equal to 0 by subtracting 3 on each side

• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.

x³ + 2x² - 9x - 18 = 0

• x = 2, x = 3

• x = -2, x = -3, x = 3

• x = -2, x = 2, x = -3, x = 3

• You can't factor........

Tags

CCSS.HSA-REI.B.4B

Solve for the values of x:
(2x + 5)(5x - 2) = 0

• { -5/2, -2/5 }

• { -5/2, 2/5 }

• { 5/2, 2/5 }

• { 5/2, -2/5 }

Tags

CCSS.HSA-REI.B.4B

f(x)=(x+4)(x-3)(x-2)
List the zeros for this function.

• x=-4, x=3, x=-2

• x=-4, x=3, x=2

• x=-4, x=3, x=2

• x=4, x=3, x=2

Tags

CCSS.HSF-IF.C.7C

The solutions of the quadratic equation
x²+12x+35=0 are

• x = -5 or x = -7

• x = 5 or x = 7

• x = -35 or x = -1

• x = -9 or x = -4

Tags

CCSS.HSA-REI.B.4B

What are the zeros of (2x+5)(x-6)=?

• -6, 5/2

• -5/2, 6

• 6, 2

• 5, -6

Tags

CCSS.HSF-IF.C.7C

The first Learning Target of Section 6.5 states that you will use the --- to solve equations.

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring:

Tags

CCSS.HSA-REI.B.4B