please can anyone solve the following problems for me and show me step by step working please

1)integral(x^2 (e^5)^x, dx)

2)[IMG]file:///C:/Users/Taichi/AppData/Local/Temp/moz-screenshot-2.jpg[/IMG]integral(4 x/sqrt(8 x^2-1), dx, 1, 2)

3)integral((x^3-2 x^2-4 x-4)/(x^2+x-2), x)

Thanks in advance

Tiachi[IMG]file:///C:/Users/Taichi/AppData/Local/Temp/moz-screenshot-1.jpg[/IMG]