Multiplying Polynomials and Simplifying Expressions Answers

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1
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What is the product?(x − 3)(2x2 − 5x + 1)

A
2x3 − x2 + 16x + 3
B
2x3 − 11x2 + 16x + 3
C
2x3 − 11x2 + 16x − 3
D
2x3 − x2 + 16x − 3
2
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What is the product?(4y − 3)(2y2 + 3y − 5)

A
8y3 + 3y + 15
B
8y3 − 23y + 15
C
8y3 − 6y2 − 17y + 15
D
8y3 + 6y2 − 29y + 15
4

Use the chart to multiply the binomial by the trinomial.

Question illustration
A
y3 + 27
B
y3 – 27
C
y3 – 6y2 + 27
D
y3 + 6y2 + 27
5

Iliana multiplied 3p – 7 and 2p2 – 3p – 4. Her work is shown in the table.

Question illustration
A
6p3 + 23p2 + 9p + 28
B
6p3 – 23p2 – 9p + 28
C
6p3 – 23p2 + 9p + 28
D
6p3 + 23p2 – 9p + 28
6

Sharina simplified the expression 3(2x – 6 – x + 1)2 – 2 + 4x. In Step 1 she simplified within the parentheses. In Step 2 she expanded the exponent.

Question illustration
A
Simplify the expression by adding and subtracting from left to right.
B
Combine like terms within the parentheses.
C
Combine all x-terms.
D
Distribute the 3 to each term in the parentheses by multiplying.
7

Chin made an error in his chart showing the multiplication of the binomial by the trinomial.

Question illustration
A
The expression 3x3 should be 3x2.
B
The expression 6x should be 6xy.
C
The expression x2y should be x2y2.
D
The expression 4y should be 4y2.
9

The polynomial x3 + 8 is equal to

A
(x + 2)(x2 – 2x + 4).
B
(x – 2)(x2 + 2x + 4).
C
(x + 2)(x2 – 2x + 8).
D
(x – 2)(x2 + 2x + 8).
10

Use the chart to multiply the binomial by the trinomial.

Question illustration
A
15y3 + 17y2 + 22y + 15
B
6y3 + 17y2 + 22y + 15
C
6y3 + 20y2 + 22y + 15
D
6y3 + 17y2 + 22y + 25

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