PLEASE HELP ME I WILL GIVE THE BRAINLIEST . I need all of these done.

1. ) g(n) =2n² -4; find g(-2)
2.) f(x)=x³+x²;find f(-6)
3.) g(x)=-x³-3x²;Find g(-1)
4.) w(x)=-3²-x;Find w(-4)
5.) h(n)=2n-2;find h(-3n)
6.) h(x)=4x+3;Find h(x-1)