Question

Suppose that the functions f and g are defined for all real numbers x as follows.

f(x) = x+1
g(x) = 2x^2
Write the expressions for (f-g)(x) and (f+g)(x) and evaluate (f×g)(-1)

Answer 1

Explanation:

(F-g) (X) =x+1-2x^2

(f+g)(x)=x+1+2x^2

(f*g)(-1)=-1