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1 vote
Which expression is equivalent to

(x2 – 5x)(3x2 + 2x – 9)?

A. x2(3x2 + 2x) – 5x(2x – 9)
B. x2(3x2 + 2x – 9) – 5x(3x2 + 2x – 9)
C. x2(3x2 + 2x – 9) + 5x(3x2 + 2x – 9)
D. x2(3x2 + 2x – 9) – 5x

User Shima
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2 Answers

4 votes

Answer:

the answer is B :)

User Explv
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2 votes
For this case we have the following expression:
(x2 - 5x) (3x2 + 2x - 9)
Rewriting we have:
(3x4 + 2x3 - 9x2) + (-15x3 - 10x2 + 45x)
3x4 - 13x3 - 19x2 + 45x
An equivalent expression is given by:
x2 (3x2 + 2x - 9) - 5x (3x2 + 2x - 9)
Answer:
B. x2 (3x2 + 2x - 9) - 5x (3x2 + 2x - 9)
User Mohit Bhardwaj
by
6.9k points