3 years ago

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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