f(x)=x^2+2x+1 & g(x)=3(x+1)^2 now, f(x)+g(x) =x^2+2x+1+3(x+1)^2 =x^2+2x+1+3(x^2+2x+1) =x^2+2x+1+3x^2+6x+3 =4x^2+8x+4<===answer(c) next: f(x)=x^2-1 & g(x)=x+3 now, f(g(x))=(x+3)^ -1 =x^2+6x+9-1 =x^2+6x+8<====answer(b) i solve two of ur problems. now try the 3rd one that is similar to no. 1 and try the last two urself.
