<span>y = <span>x2 </span>+ 5x + 36
y = (<span>x2 </span>− 5x − 36)</span>
<span>y = (<span>x2 </span>− 9x + 4x − 36)</span>
<span>y = [x (x − 9) + 4 (x − 9)]</span>
<span>y = (x − 9)(x + 4)</span>
The length of the room is 156 sq in
(X - 2)×(X + 5) = 0
X= 2 or -5
2y^2 = x^2
y = x/sqrt(2)
how?
y = (x^2)/(2y)
y(2y) = (x^2)(2y)/(2y)
