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Mathematics 8 Online
OpenStudy (anonymous):

(g x f)(x) when f(x) = x+5 and g(x) = 7x

OpenStudy (anonymous):

You posted this already? (x+5)(7x) = 7x^2+35x

OpenStudy (anonymous):

it's different because this is g x f not f x g

OpenStudy (anonymous):

Multiplication does not care about the order.

OpenStudy (anonymous):

but online it said it was something like 7(x+5)^2 but then I don't know how to solve from there

OpenStudy (anonymous):

OHHHHH. I'm so sorry, I was not understanding the notation you were using. It means g(f(x)) right? so it should be 7(x+5), idk where the squared came from in your last statement.

OpenStudy (anonymous):

is the other answer for fxg(x) still right?

OpenStudy (anonymous):

No. It would be 7x+5.

OpenStudy (anonymous):

and do I distribute the 7 in 7(x+5) or just leave it?

OpenStudy (anonymous):

I would distribute the 7 to get 7x+35.

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