Can you double check the original problem? I'm curious as to why g(x) was written as
when you could combine like terms and rewrite g(x) as
.
The question:
Given that,
Find 6f + 3g.
My attempt:
Apparently the answer is:
I'm not sure how they were able to simplify the expression that way. I'm sure it's something obvious that I'm overlooking. Any assistance would be great.
There is maybe a mistake in the textbook since, as already mentioned, you can simplify the expression of g by and since the answer is not the one you get
I suggest that
In this case