HELP! 70 POINTS! URGENT! Which expression is equivalent to (5x^7+7x^8)−(4x^4−2x^8) Question 2 options: a) 3x^8+7x^7 b) 9x^8+5x^7−4x^4 c) 5x^8+5x^7+4x^4 d) 12x^8−2x^4

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asked Dec 10, 2021 35.5k views

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HELP! 70 POINTS! URGENT!

Which expression is equivalent to (5x^7+7x^8)−(4x^4−2x^8)
Question 2 options:
a) 3x^8+7x^7
b) 9x^8+5x^7−4x^4
c) 5x^8+5x^7+4x^4
d) 12x^8−2x^4

Mathematics
middle-school

Marat Mkhitaryan asked

by Marat Mkhitaryan

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2 Answers

2 votes

Answer: b

Step-by-step explanation: hope i helped

Collins answered Dec 12, 2021

by Collins

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3 votes

Combine like terms:

The answer is: b) 9x^8 + 5x^7 - 4x^4

Mihir Dave answered Dec 16, 2021

by Mihir Dave

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