5.1a Multiplying Binomials

Simplify the following expression:  
(-x - 3)(x + 5)

• -x² + 2x - 15
• -x² - 8x - 15
• x² + 2x - 15
• -x² - 8x + 15

Distribute and combine like terms:
(2x + 4)(x - 8)

• 2x² - 12x - 32
• 2x² - 4x - 32
• 2x² - 12x - 4
• 2x² - 4x - 4

Expand the squared binomial.
(x - 5)²?

• x² + 25
• x² - 25
• x² - 10x - 25
• x² - 10x + 25

Simplify the following expression:
(4x - 1)(4x + 1)

• 16x² + 8x - 1
• 8x² + 8x
• 8x² - 1
• 16x² - 1

Which of the following is equivalent to

(x + 10)²

• x² + 10x + 10x + 100

• x² + 20x + 100

• (x + 10)(x + 10)

• All of the above.

What is monomial?

• Only one term.

• Two terms.

• Three terms

What is trinomial?

• Two terms.

• Three terms.

• Only one term.

What is binomial?

• Two terms.

• Only one term.

• Three terms.