Question 323888
The area of a rectangle is given by:
{{{A = L*W}}} Substitute {{{L = 2x-1)}}} and {{{W = x+2}}}
{{{A(x) = (2x-1)(x+2)}}} Expand the right side.
{{{highlight(A(x) = 2x^2+3x-2)}}} Substitute {{{x = 5}}}
{{{A(5) = 2(5)^2+3(5)-2}}} Evaluate.
{{{A(5) = 2(25)+15-2}}}
{{{highlight(A(5) = 63)}}}