Answer: x³ + 9x + 5
Concept:
When given two functions and asked to find their sum, the process would be simply adding the expressions together to get the answer.
Solve:
**Disclaimer** I assumed the [-] as [=]. If it was, then you may refer to my answer. If it was not, then you may tell me and I'll redo it.
Given information
g(x) = x³ + 5x
f(x) = 4x + 5
Given expression
g(x) + f(x)
Substitute values into the expression
x³ + 5x + 4x + 5
Combine like terms
x³ + (5x + 4x) + 5
Hope this helps!! :)
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