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Andrews [41]
2 years ago
12

100 POINTS PLEAS please help

Mathematics
2 answers:
mel-nik [20]2 years ago
7 0
  • (-2u³+5u-1)+(7u³-2u²+9)
  • -2u³+5u-1+7u³-2u²+9
  • 5u³-2u²+5u-1+9
  • 5u³-2u²+5u+8

Option A

Kamila [148]2 years ago
6 0

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

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