homework - review

For the quadratic function x² - 17 + 30, which of these would be a factor:

• (x + 5)

• (x + 15)

• (x - 15)

• (x + 2)

Which of the following is a correct factor for

3x² + 13x + 12

• (x + 4)

• (3x + 3)

• (3x + 4)

• (x + 6)

Write x² + 4x - 12 in vertex form by completing the square

• (x + 4)² + 2

• (x + 2)² - 16

• (x - 4)² + 16

• (x -2)² + 16

Solve for x:

x² + 14x + 7

The solutions of the quadratic equation
x²-5x+6=0 are

• x=1 or x=-6
• x=3 or x=2
• x=-3 or x= 2
• x=-1 or x=6

Fill the blank spaces to complete the perfect square trinomial

x²-18x+____=(x- ____)²

• 9 and 3 respectively

• 81 and 9 respectively

• -9 and -3 respectively

• -81 and -9 respectively

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 0 by subtracting 3 on each side
• Type it all in a calculator.

What is this formula?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the zero product property.
• This is scary.

Solve: (x - 2) ² = 49

• 9 or -5

• ± 9

• ± 5

• ± 7

Find the missing value "c" to create a perfect square trinomial:
x² – 8x  + ___ 

• -4
• 16
• 4
• 8