Multiplying Monomials and Binomials Answers

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Multiply: (5t – 4)(4t + 5)What is the product?

20t2 + 9t – 20

20t2 + 18t – 19

20t2 + 25t – 36

20t2 + 41t – 20

Is the student’s work correct?

No, she did not multiply –6y2 by 2 correctly.

No, she did not add 3y2 and –12y2 correctly.

No, she did not use the distributive property correctly.

Yes, she multiplied the binomials correctly.

The product is k2 – k + .

The product (k – 9)2 can also be written as .

(k – 9)(k + 9)

(k – 9)(k – 9)

(k + 9)(k + 9)

The product is k2 – k + .

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