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Mathematics 13 Online
OpenStudy (anonymous):

Please help and show how to get answer ASAP Photo attached.

OpenStudy (anonymous):

OpenStudy (anonymous):

@DebbieG can u help me

OpenStudy (akashdeepdeb):

All they want you do here is to replace the value of x in f(x) with (3+h) in f(x) Getting me? :)

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

so which one is it? im guessing its A

OpenStudy (akashdeepdeb):

So when you replace the value of (3+h) in f(x) you get. (3+h)^2 + 3(3+h) + 5 Now open the brackets and simplify it.. See which one is the correct option thereafter.. :)

OpenStudy (debbieg):

What @AkashdeepDeb said. :) and don't guess, no need for guessing! You have to plop (3+h) into the function wherever you see an x, and then just simplify that (expand the square, add like terms, etc).

OpenStudy (anonymous):

A would be closest @AkashdeepDeb

OpenStudy (debbieg):

Remember that a variable is just a placeholder... it stands in for some value that you "insert" and then evaluate the function. The value it stands in for need not be a number, it can be an algebraic expression, another function, etc.

OpenStudy (anonymous):

B!!! [:

OpenStudy (akashdeepdeb):

Not quite @Riza Listen to @DebbieG :)

OpenStudy (anonymous):

B.. h^2 + 9h +23

OpenStudy (akashdeepdeb):

YES!! :D

OpenStudy (debbieg):

Do you see why?

OpenStudy (anonymous):

AWESOMe [: yes i simplified it [:

OpenStudy (akashdeepdeb):

:)

OpenStudy (debbieg):

Excellent, nice job! :) (see, no guessing necessary! :)

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