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zhuklara [117]
3 years ago
13

Simplify by adding

Mathematics
1 answer:
Musya8 [376]3 years ago
5 0

Answer:

=3x^2-3x-7

Step-by-step explanation:

\mathrm{Remove\:parentheses}:\quad \left(a\right)=a

=3x^2+2x-5x-7

\mathrm{Add\:similar\:elements:}\:2x-5x=-3x

=3x^2-3x-7

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see the explanation

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