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Mathematics 8 Online
OpenStudy (anonymous):

f(x) = (x + 2)2 and g(x) = x2 − (x + 2)2. Find f(x) − g(x).

OpenStudy (anonymous):

(x+2)^2 - (x^2 - (x+2)^2) = ? That should be what you are solving assuming I understood it right (like the x2 = x squared)

OpenStudy (anonymous):

yes, sorry about that.

OpenStudy (anonymous):

2(x+2)2-x2

OpenStudy (anonymous):

and the 2 after the parenthesis is an exponent as well

OpenStudy (anonymous):

Okay. Your first step from here is going to be to multiply out the parentheses. (x+2)*(x+2)

OpenStudy (anonymous):

2x+4 right ?

OpenStudy (anonymous):

Not quite. How has your teacher told you to solve these?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

I take an online class and I the tutorials haven't helped me at all.

OpenStudy (anonymous):

The best way is: |dw:1365651065949:dw| Sorry, kind of sloppy

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