## anonymous 4 years ago How do I add sqrt(3x+7) to sqrt(3x-7)?

1. anonymous

$\sqrt{3x+7}+\sqrt{3x+7}$ x + x =?

2. anonymous

@keeponbleeding you there

3. anonymous

The second one is 3x-7 not +7 but x+x =2x...

4. anonymous

$\sqrt{3x+7}+\sqrt{3x-7}$ you cant add them unless you have a value for x

5. anonymous

well actually the question was a function: f(x)=sqrt(3x+7) g(x)= sqrt(3x-7)? Find (f + g)(x). So I thought Id add them…

6. anonymous

correct just put the "+" between them and you are good to go

7. anonymous

ohhh. k, its that easy...thanks! :)