Can someone walk me through this!? f(x) = -2x+4 and g(x)= -6x-7
find f(x)-g(x).
I know the answer is 4-2x^2 I just don't know the steps to get that answer.

Question

Can someone walk me through this!? f(x) = -2x+4 and g(x)= -6x-7 
find f(x)-g(x). 
I know the answer is 4-2x^2 I just don't know the steps to get that answer.

mathstudent55 · Answer

That can't be the solution if your functions and operation are correct.
Neither function has an x^2 term. Subtraction can't result in an x^2 term.

anonymous · Answer

Can you help explain it then? I'm really stuck on this.

mathstudent55 · Answer

I can help you with the problem you posted, but you're not going to get the answer you wrote.

mathstudent55 · Answer

$\color{red}{f(x) = -2x+4}$
$\color{green}{g(x)= -6x-7}$

$\color{red}{f(x)}-\color{green}{g(x)} $

$~~~~~~~~~~~~~~~~~= \color{red}{-2x + 4} - \color{green}{(-6x-7)}$

$~~~~~~~~~~~~~~~~~= -2x + 4 + 6x + 7$

$f(x) - g(x) = 4x + 11$

anonymous · Answer

Wow thats actually really simple thank you so much! Could you help me with another problem kind of similar? I can try solving it and if i'm wrong could you correct me?

mathstudent55 · Answer

I'm getting off in a few minutes.
Post it anyway if you need help.
If I'm not here, someone else will help you.

anonymous · Answer

okay thanks for the help though!