Seudónimo Seudónimo

09-11-2016
Mathematics

contestada

Simplify the expression 21b4 − 3b by combining like terms. choose the correct answer please just tell me the answer i'm running out of time.
18b^3
21b^4 − 3b
18b^5
18b^4

Respuesta :

Americanwallflower Americanwallflower

15-11-2016

The answer is D, I believe, 18b^4.

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