Diketahui f(x)= x-3 , g(x)= 2x+5 , h(x)=x²+1 tentukan nilai a. (gohof) (x) b. (fogoh) (-2)

A.(gohof)x=g[h(f(x)]
=g[h(x-3)]
=g(x²-6x+10)
=2x²-12x+25
b.(fogoh)(-2)=f[g(h(-2)]
=f[g(5)]
=f(15)
=12