Factor Difference of Squares

Select all of the factors of the following expression:

x²-9

• x+3

• x+9

• x-9

• x-3

Select all of the factors of the following expression:

x²-36

• x+6

• x-6

• x-9

• x+4

Select all of the factors of the following expression:

x²-100

• x-20

• x-5

• x-10

• x+10

Select all of the factors of the following expression:

x²-49

• x+4

• x+7

• x-7

• x-4

Select all of the factors of the following expression:

x²-144

• x+12

• x+144

• x+1

• x-12

What value for "c" makes the following equation true?

x²-25 = (x+5)(x-c)

What value for "r" makes the following equation true?

x²-64 = (x+r)(x-8)

What value for "w" makes the following equation true?

x²-81 = (x+w)(x-w)

What value for "h" makes the following equation true?

x²-1 = (x+h)(x-h)

Write out the factored form of the following polynomial:

x² - 16