3 years ago

I need some help with this!

Mathematics

1 answer:

Dimas [21]3 years ago

3 0

(-x³ +3x +4) -(2x³ +7x² -9) = -x³ +3x +4 -2x³ -7x² +9 . . . . eliminate parentheses

= x³(-1-2) +x²(-7) +x(3) +(4+9)

= -3x³ -7x² +3x +13 . . . matches the second choice.

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Step-by-step explanation:

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2 years ago

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Gennadij [26K]

Answer:

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Step-by-step explanation:

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2 years ago

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Answer:

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2 years ago

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iren2701 [21]

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Hope this helps you out!

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