Take the cube of the input, multiply by 3, add 5, and divide the result by the input.

Question

Write an algebraic formula for f(x) where x is the input

Answer 1

f(x) = [3x^3 +5]/x

= 3x^2 +5/x

the input is x

cube the input: x^3

multiply by 3: 3x^3

add 5 3x^3+5

divide by the input: (3x^3 +5)/x

simplify: 3x^2 + 5/x