Question

F(x)=x^2-5 g(x)=4-x^3 if (f+g)(-1)

Answer 1

To find (f+g)(-1), substitute x=-1 into both f(x) and g(x), and add the results together. The answer is 1.

Step-by-step explanation:

To find (f+g)(-1), we need to substitute x=-1 into both f(x) and g(x) and then add the results together.

For f(x), substituting x=-1 gives:

f(-1) = (-1)^2 - 5 = 1 - 5 = -4.

For g(x), substituting x=-1 gives:

g(-1) = 4 - (-1)^3 = 4 - (-1) = 4 + 1 = 5.

Adding the results together, we get:

(f+g)(-1) = -4 + 5 = 1.