Here's the question you clicked on:
abbie1
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Just do this and foil it: (5 + 2x)(8 + 2x) = 154 then it'll be in standard form and you can solve it.
is this right?? x=width Length of room=8+2x Width=5+2x (8+2x)(5+2x)=154 40+10x+16x+4x^2=154 4x^2+26x-114=0 2x^2+13x-57=0 2x^2-6x+19x-57=0 2x(x-3)+19(x-3)=0 (2x+19)(x-3)=0 x=-19/2 x=3