Question 173196
Solve by factoring:
{{{18d^2+30d+12 = 0}}} First factor 3 from the trinomial.
{{{6(3d^2+5d+2) = 0}}} so that you now have:
{{{3d^2+5d+2 = 0}}} Now factor the trinomial.
{{{(3d+2)(d+1) = 0}}} Now apply the zero product rule.
{{{3d+2 = 0}}} or {{{d+1 = 0}}}
If {{{3d+2 = 0}}} then {{{3d = -2}}} and so {{{d = -2/3}}}
{{{If d+1 = 0}}} then {{{d = -1}}}
The solution is:
{{{highlight(d = -2/3)}}}
{{{highlight(d = -1)}}}