Calculus Help: Integration x^3 ( 2+x^4)^5 dx , (x+1) √(2x+x^2) dx, 1/(1-6x)^4 dx

Here is the technique to solve all 3 integrations and how to find them in step-by-step

Integration x^3 ( 2+x^4)^5 dx , (x+1) √(2x+x^2) dx, 1/(1-6x)^4 dx