Question 217208
Try this! L = Length and W = Width.
{{{L = W+3}}}
Area: L*W = 130 Substitute L = W+3.
{{{(W+3)*W = 130}}}
{{{W^2+3W = 130}}} Subtract 130 from both sides.
{{{W^2+3W-130 = 0}}} Factor the trinomial.
{{{(W-10)(W+13) = 0}}}
{{{w-10 = 0}}} or {{{W+13 = 0}}} so...
{{{W = 10}}} or {{{W = -13}}} Discard the negative solution as width is a positive value.
{{{highlight(W = 10)}}} and:
{{{L = W+3}}}
{{{highlight(L = 13)}}}