Short Answer: Combine like terms
Remark
Just from what I see here, remove the brackets first and combine like terms second.

Discussion
8 - 2x + 4 The like therms are 8 and 4 First step
12 - 2x That's the answer. Don't go any further. 2nd and last step

3 0

2 years ago

If f(x)=3^x+10x and g(x)=4x-2, find (f+g)(x)

Vikentia [17]

Hi there!

First we need to remember the following.
$(f + g)(x) = f(x) + g(x)$

Now substitute both of the formulas.
$(f + g)(x) = ({3}^{x} + 10x)+ (4x - 2)$

Work out the parenthesis.
$(f + g)(x) = {3}^{x} + 10x + 4x - 2$

And finally collect terms.
$(f + g)(x) = {3}^{x} + 14x - 2$

~ Hope this helps you!

3 0

3 years ago

Read 2 more answers

Two interior angles of a triangle each measure 34 what is the measure of the third interior angel?

Anestetic [448]

I go I go I go I go cra a a azy

6 0

3 years ago

Joshua has more than 250 toy soldiers. When he tries to arrange them in rows of 3, there are 2 left over. When he tries to arran

Vikentia [17]

Don't look at this comment.. I messed up the first time so, yeah.

6 0

3 years ago