Question

f a storm window has an area of 400 square inches, what are the dimensions if the window is 12 inches wider than it is high (w x h)?

Answer 1

A=xy and we are told y=12+x so

A=12x+x^2 and A=400 so

x^2+12x=400

x^2+12x-400=0

x=(-12±√1744)/2

x≈14.88

So the dimensions are approximately 14.88" by 26.88"

Answer 2

Well if the window is 40 x 10  the L is 52 and the w 22