AnswersAG Q2 Keystone Algebra 1 Block 26-27DDiamondMultiplying Monomials and Binomials

Multiplying Monomials and Binomials Answers

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1
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Multiply: (x + 3)(x – 4) What is the middle term in the simplified product?

A
x
B
–x
C
3x
D
-4x
2
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91881

A
9
B
18
C
81
3

91881

A
9
B
18
C
81
4

Is the student’s work correct?

A
No, she did not multiply –6y2 by 2 correctly.
B
No, she did not add 3y2 and –12y2 correctly.
C
No, she did not use the distributive property correctly.
D
Yes, she multiplied the binomials correctly.
5

Which products result in a difference of squares? Check all that apply.(5z + 3)(–5z – 3)(w – 2.5)(w + 2.5)(8g + 1)(8g + 1)(–4v – 9)(–4v + 9)(6y + 7)(7y – 6)(p – 5)(p – 5)

A
(5z + 3)(–5z – 3)
B
(w – 2.5)(w + 2.5)
C
(8g + 1)(8g + 1)
D
(–4v – 9)(–4v + 9)
E
(6y + 7)(7y – 6)
F
(p – 5)(p – 5)
6

(k – 9)(k + 9)(k – 9)(k – 9)(k + 9)(k + 9)

A
(k – 9)(k + 9)
B
(k – 9)(k – 9)
C
(k + 9)(k + 9)

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