Question 879323


 {{{f(x)= (8x+x^2)^4 }}}, {{{g(x)= 8x+x^2}}} , {{{f(g(x)) }}}

{{{ f(g(x))=(8(8x+x^2)+(8x+x^2)^2)^4}}}

{{{f(g(x)))=((64x+8x^2)+(64x^2+16x^3+x^4))^4}}}

{{{f(g(x)) =(x^4+16x^3+72x^2+64x)^4}}}

{{{f(g(x)) =(x^4+16x^3+72x^2+64x)^4}}}