Then ab=24 a+2b= 14.
A =14-2bab = (14-2b) b = 24b = 3 or 4, a=8 or 6.
The second question is the same as above.
AB = 25a =14-2bb-14b+25 = 0 to find the root formula. If there is no root, a rectangle with an area of 25 cannot be circled.