Question 201620
Solve for n:
{{{3n^2-15 = -4n}}}  Add 4n to both sides.
{{{3n^2+4n-15 = 0}}} Factor.
{{{(3n-5)(n+3) = 0}}} Apply the zero product rule.
{{{3n-5 = 0}}} or {{{n+3 = 0}}} so...
{{{3n = 5}}} and {{{highlight(n = 5/3)}}} or
{{{highlight(n = -3)}}}