Question 172459
Given:
{{{L=3+2W}}}
{{{W=W}}}
{{{A=44ft^2}}}
Then,
{{{A=L*W}}} ------>{{{44ft^2=(3+2W)(W)}}}
{{{44=3W+2W^2}}} ----------->{{{2W^2+3W-44=0}}}
By Quadratic: {{{x=(-b+-sqrt(b^2-4ac))/(2a)}}}
where--->{{{system(a=2,b=3,c=-44)}}}
Plug in the values and you'll get:
{{{x=highlight(4ft=W)}}} ---->Width; {{{x=-22/4}}}, disregard
Also, {{{L=3+2*4=3+8=highlight(11=L)}}}
Check,
{{{44=11*4}}}
{{{44ft^2=44ft^2}}}
Thank you,
Jojo