Question

sea f( x)= tres x al cubo + 5x, calcule f(59 + f(3)

Answer 1

f(x)=3x^3+5x entonces f(5) = 3(5)^3+5(5) ; f(3)=3(3)^3+5(3)

f(5)=400

f(3)=96

entonces f(5)+f(3) = 400+96 = 496