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Mathematics 20 Online
OpenStudy (lidia.12):

F(x)5x+1 g(x)3x-5. Find the function (f-g)(x)

OpenStudy (3mar):

May I help?

OpenStudy (3mar):

Thank you for the medal!

OpenStudy (3mar):

Can you proceed?

OpenStudy (lidia.12):

No

OpenStudy (3mar):

Why? Did you get it?

OpenStudy (lidia.12):

I don't understand it. Can you help?

OpenStudy (3mar):

Of course

OpenStudy (3mar):

Firstly Thank you for the medal!

OpenStudy (3mar):

(f-g)(x) simply means f(x)- g(x)

OpenStudy (3mar):

You got the both functions, can you subtract them?

OpenStudy (3mar):

Do you follow?

OpenStudy (lidia.12):

Not really

OpenStudy (3mar):

what is f(x)?

OpenStudy (lidia.12):

.....

OpenStudy (3mar):

\[f(x)-g(x)=(5x+1)-(3x-5)\] ok? Can you distribute the minus into the parentheses?

OpenStudy (lidia.12):

Yes. Wouldn't it then be -3x+5?

OpenStudy (lidia.12):

For that one parenthesi

OpenStudy (3mar):

Correct!

OpenStudy (3mar):

and the rest will be?

OpenStudy (lidia.12):

That I'm not sure of😅

OpenStudy (3mar):

Type it and don't worry that is wrong. Please do it

OpenStudy (lidia.12):

Would I simplify?

OpenStudy (3mar):

Just type it in and then simplify it

OpenStudy (lidia.12):

-15xsquared-5?

OpenStudy (3mar):

It seems you multiply them. Not correct and no problem

OpenStudy (3mar):

5x+1-3x5 as you said ok?

OpenStudy (lidia.12):

Oh okay I get it

OpenStudy (3mar):

can you complete?

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