How do you simplify $4m(m-1)-5m(2+4m)$ ?

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Answer 1 · 2017-05-31T12:26:16

$-16m^2-14m$

$"distribute the brackets and collect like terms"$

$rArrcolor(red)(4m)(m-1)color(red)(-5m)(2+4m)$

$=4m^2-4m-10m-20m^2$

$=-16m^2-14m$

How do you simplify 4m(m-1)-5m(2+4m) 4m(m-1)-5m(2+4m)?