Is 2(5m-4)-3(m-5)^2 equivalent to -3m^2+40m-83? Show your work.

asked May 19, 2022 72.6k views

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$\\ \sf\longmapsto 2(5m-4)-3(m-5)^2$

$\\ \sf\longmapsto 10m-8-3(m^2-10m+5^2)$

$\\ \sf\longmapsto 10m-8-3(m^2-10m+25)$

$\\ \sf\longmapsto 10m-8-3m^2+30m-75$

$\\ \sf\longmapsto -3m^2+30m+10m-75-8$

$\\ \sf\longmapsto -3m^2+40m-83$

Minorblend answered May 25, 2022

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