Question

If f(x) = 1 + x2 and g(x) = 1-, which is the rule of function (f-)(x)?

Answer 1

= -x^2 +x

Explanation:

(x) = 1 - x^2

g(x) = 1-x,

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

Distribute the minus sign

= 1-x^2 -1 +x

Combine like terms

= -x^2 +x