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jolli1 [7]
3 years ago
7

What is the simplified form of this expression? (-3x2 + 2x − 4) + (4x2 + 5x + 9)

Mathematics
2 answers:
olga2289 [7]3 years ago
3 0

Answer:

<em><u>I</u></em><em><u> </u></em><em><u>hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helps</u></em><em><u> </u></em><em><u>you</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

olya-2409 [2.1K]3 years ago
3 0

Answer:

\large \boxed{\sf \  \  x^2 + 7x + 5 \ \ }

Step-by-step explanation:

\mathrm{\sf (-3x^2  + 2x -4) + (4x^2  + 5x + 9)}

Remove brackets.

\large{\sf -3x^2  + 2x -4 + 4x^2  + 5x + 9}

Group like terms.

\large{\sf -3x^2 + 4x^2 + 2x  + 5x + 9  -4}

Combine like terms.

\large{\sf x^2 + 7x + 5}

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