Question 150954
2x+2y=56
xy=192
x=192/y
2(192/y)+2y=56
384/y+2y=56
(384+2y^2)/y=56
2y^2+384=56y
2y^2-56y+384=0
2(y^2-28y+192)=0
2(y-16)(y-12)=0
y-16=0
y=16 answer.
2x+2*16=56
2x+32=56
2x=56-32
2x=24
x=24/2
x=12 answer.
poof:
12*16=192
192=192