Add the polynomials: (-5 - 7x^2); (5 + 7x^3) * 0 - 14x15 O 10 + 14x^3 0 -7x^2 + 7x^3 OO

asked May 9, 2021 102k views

1 vote

Add the polynomials: (-5 - 7x^2); (5 + 7x^3) *

0 - 14x15
O 10 + 14x^3
0 -7x^2 + 7x^3
OO

4.1k points

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5 votes

Answer:

$- 7 {x}^(2) + 7 {x}^(3)$

Explanation:

$( - 5 - 7 {x}^(2) ) + (5 + 7 {x}^(3) ) \\ = - 5 - 7 {x}^(2) + 5 + 7 {x}^(3) \\ = - 7 {x}^(2) + 7 {x}^(3)$

Phil H answered May 14, 2021

3.9k points

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