<PRE><B>Question 1166473</B>
rectangle is s wide and 3s+4 long units cm
Side of square is 3s+4
area of square is 9s^2+24s+16
area of rectangle is 3s^2+4s
therefore, 3s^2+4s+66=9s^2+24s+16
0=6s^2+20s-50=3s^2+10s-25
(3s-5)(s+5)=0
s=5/3 cm
square is 9 cm on a side or 81 cm^2
rectangle ia 9 cm long and 5/3 cm wide or area 15 cm^2</PRE>