Which of the following is an equivalent expression? -2m(m+n-4)+5(-2m+2n)+n(m+4n-5)

asked Jun 15, 2018 167k views

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by Peri

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6 votes

Answer:

-2m^2-mn-2m+5n+4n^2

Explanation:

$-2m(m+n-4)+5(-2m+2n)+n(m+4n-5)\\=-2m^2-2mn+8m-10m+10n+mn+4n^2-5n\\=-2m^2-2mn+mn+8m-10m+10n-5n+4n^2\\=-2m^2-mn-2m+5n+4n^2\\$

Tomas Grosup answered Jun 22, 2018

8.0k points

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