Use the Midpoint Rule for Double Integrals With $m = n = 2$

Short Answer

Use the Midpoint Rule for double integrals with $m = n = 2$ to estimate the area of the surface. Round your answer to three decimal places. $z = x y + x ^ { 2 } + y ^ { 2 } , 0 \leq x \leq 5,0 \leq y \leq 5$