Question

100 POINTS PLEAS please help

Answer 1

• (-2u³+5u-1)+(7u³-2u²+9)
• -2u³+5u-1+7u³-2u²+9
• 5u³-2u²+5u-1+9
• 5u³-2u²+5u+8

Option A

Answer 2

Answer:

$\textsf{A)} \quad 5u^3-2u^2+5u+8$

Step-by-step explanation:

Given expression:

$(-2u^3+5u-1)+(7u^3-2u^2+9)$

Remove parentheses:

$\implies -2u^3+5u-1+7u^3-2u^2+9$

Collect like terms:

$\implies -2u^3+7u^3-2u^2+5u-1+9$

Combine like terms:

$\implies 5u^3-2u^2+5u+8$