Question

If a storm has an area of 400 in.² what are the dimensions if the window is 12 inches wider than it is high(w x h )

Answer 1

h=x

l =x+12

x(x+12)=400

x²+12x-400 =0

b²-4ac=12²-4(1*400)=1744

Δ=4√109

(-b-√Δ)/2a =(-12-4√109)/2 = -6-2√109=6+2√109

(-b+√Δ)/2a =(-12+4)√109)/2=-6+2√109

Explanation: