Question

Let f(x)=x+1 and g(x)= x^2 – 2. Find f (x)· g(x)

Answer 1

9514 1404 393

Answer:

f(x)·g(x) = x³ +x² -2x -2

Explanation:

Substitute the function definitions and simplify.

f(x)·g(x)

= (x +1)(x² -2)

= x(x² -2) +1(x² -2)

= x³ -2x +x² -2

f(x)·g(x) = x³ +x² -2x -2