a) \(36^2+14^2+36.28\)
\(=36^2+14^2+2.36.14\)
\(=\left(36+14\right)^2=50^2=2500\)
b) \(77^2+93^2-17^2-33^2\)
\(=77^2-33^2+93^2-17^2\)
\(=\left(77-33\right)\left(77+33\right)+\left(93-17\right)\left(93+17\right)\)
\(=110\left(77-33+93-17\right)\)
\(=110.120=13200\)