7a2 - 5a + 2, 3a2 - 7, 2a + 9,1 + 2a - 5a2. find the sum of

asked Mar 28, 2023 123k views

1 vote

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3 votes

Answer:

5a^2 -a+5

Explanation:

$7a^2-5a+2+3a^2-7+2a+9+1+2a-5a^2 \\ \\ =(7a^2+3a^2-5a^2)+(-5a+2a+2a)+(2-7+9+1) \\ \\ =5a^2 -a+5$

ZWang answered Apr 1, 2023

by ZWang

3.7k points

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