Quadratic Factors

Solve: x²-4x-21=0

• {-7, 3}

• {-3, 7}

• {3, 7}

• {-3,-7}

Solve each equation by factoring.

• A

• B

• C

• D

Match the following quadratic equations in standard form to their correct factored form.

• f(x)=(x+6)(x-2)

• f(x)=(x-8)(x+3)

• f(x)=(x-6)(x+4)

• f(x)=(x+8)(x+3)

• f(x)=(x+2)(x+6)

x² + 4 = 68

• ± 8

• ± √8

• 8

• ± 64

What is the equation for axis of symmetry?

• y=3

• x=3

• x=5

• x=1

Which line represents a factor of the quadratic function?

• The blue line

• The green line

• The purple line

• The black line

Which line represents a factor of the quadratic function?

• The blue line

• The green line

• The purple line

• The black line

Which line represents a factor of the quadratic function?

• The blue line

• The green line

• The purple line

• The black line

What are the factors of the parabolic function?

• (x+3)(x-1)

• (x-3)(x+1)

• (-3,0) and (1,0)

• (3,0) and (-1,0)

Factor completely: x²-6x+8

• (x-2)(x-4)

• (x-1)(x-8)

• (x+2)(x+4)

• (x+1)(x+8)