Let f(x)=9-x^2, g(x)=3-x. find (f-g)(x) and its domain

Domain:

Step-by-step explanation:

we are given

Calculation of (f-g)(x):

we can plug it

now, we can simplify it

Domain:

we know that

domain is all possible values of x for which any function is defined

and f(x),g(x) and (f-g)(x) are polynomials

so, domain will be all real numbers

so, we get

i think it is 18

step-by-step explanation: