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OpenStudy (anonymous):
Simplify... 8n2-4(7m3+5n2)
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OpenStudy (eli_moses):
\[8n ^{2}-4(7m ^{3}+5n ^{2})\]
OpenStudy (eli_moses):
so \[8n ^{2}-28m ^{2}-20n ^{2}\]
OpenStudy (eli_moses):
now simplify that expression
OpenStudy (anonymous):
-28n2-23m3 ?
OpenStudy (anonymous):
wait no...
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OpenStudy (anonymous):
-28n3-12n2?
OpenStudy (eli_moses):
yes and i made a mistake on the second expression. it's -28m3, not -28m2 you're correct
OpenStudy (anonymous):
ok thanks :)
OpenStudy (eli_moses):
no prob
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