Find the product of (8x - 7) and (-3x3 + 7x - 1) A) -24x4 + 77x3 – 49x2 – 8x + 7 B-24x4 +21x3 + 56x2_57x + 7 C-24x3 + 77x2 - 57x + 7 D) -24x4 + 7773-57x2 + 7x

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asked Mar 26, 2021 73.7k views

3 votes

Find the product of (8x - 7) and (-3x3 + 7x - 1)

A) -24x4 + 77x3 – 49x2 – 8x + 7
B-24x4 +21x3 + 56x2_57x + 7
C-24x3 + 77x2 - 57x + 7
D) -24x4 + 7773-57x2 + 7x

Mathematics
college

Karol Zlot asked

by Karol Zlot

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2 Answers

3 votes

Answer:

B 24x4 +21x3 + 56x2_57x + 7

Explanation:

Ishara Amarasekera answered Mar 28, 2021

by Ishara Amarasekera

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3 votes

Answer:

B is the correct answer.

Explanation:

$(8x - 7)(-3x^3 + 7x - 1)\\=-24x^4 + 56x^2 - 8x + 21x^3 - 49x + 7\\= -24x^4 + 21x^3 + 56x^2 -57x + 7$

This matches answer B.

Ou answered Mar 29, 2021

by Ou

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