Please help me, which integral is correct

Apool of the shape of an inverted truncated pyramid as shown in the following gure is lled with water up to 3 meters deep. The top of the pool is a square of sidelength 10' meters, the bottom of the pool is a square of sidelength 2 maters= and the depth of the pool is 4 meters. The area of a horizontal layer of water 3: meters above the bottom of the pool is .d{x} = {2x + 2]: m2. Assume the density of water is km/m', and let the gravity of acceleration be g m/sec-. The work, in Joules, needed to pump all the water in the tank to a nozzle 1 meter above the top of the tank is calculated by the integral\fpg 1 (2x + 2)2 ( x + 1) da pg fo (2ac + 2)2 (x + 1) dacpg So (2ac + 2)2 (5 - a) dac pg fo (2ac + 2)2 (x + 1) dacpg f (2ac + 2)2 (5 - x) dac pg So (2ac + 2)2 (5 - 2) dac