AnswersCommon Core Algebra I B-ICFactoring Polynomials Completely

Factoring Polynomials Completely Answers

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1
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Which is the completely factored form of 3x2 – 12x – 15?

A
3(x + 1)(x – 5)
B
3(x – 1)(x + 5)
C
(3x + 1)(x – 15)
D
(3x – 1)(x + 15)
2
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Which product of prime polynomials is equivalent to 3x4 – 81x?

3
3x(x – 3)(x2 – 3x – 9)
3
3x(x – 3)(x2 + 3x + 9)
3
3x(x – 3)(x – 3)(x + 3)
3
3x(x – 3)(x + 3)(x + 3)
3

Which polynomial is prime?

A
x2 + 7
B
x2 – 25
C
3x2 – 27
D
2x2 – 8
6

Which is the completely factored form of 4x3 + 10x2 – 6x?

A
2(x + 3)(2x – 1)
B
2x(x + 3)(2x – 1)
C
2x(x – 3)(2x – 1)
D
2(x – 3)(2x + 1)
7

Which product of prime polynomials is equivalent to 36x3 – 15x2 – 6x?

A
x(3x – 2)(4x + 1)
B
3x(3x – 2)(4x + 1)
C
3(x2 + 1)(4x – 1)
D
3(x2 + 1)(4x + 1)

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