Question 211344
Solve for m:
{{{8m^3-40m = 4m^2}}} Subtract {{{4m^2}}} from both sides.
{{{8m^3-4m^2-40m = 0}}} Fator 4m.
{{{4m(2m^2-m-10) = 0}}} Factor thr trinomial.
{{{4m(2m-5)(m+2) = 0}}} Apply zero product rule:
{{{4m = 0}}} or {{{2m-5 = 0}}} or {{{m+2 = 0}}} so...
{{{m = 0}}} or {{{m = 5/2}}} or {{{m = -2}}}