evaluate the expression

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sughapuddie

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Jan 6, 2011
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ok i have not done math in a long time i have this problem and i need to be refreshed lol

evaluate the expression with the given values. if necessary round to the nearest tenth.

(x+2y)^2 x=3 y=4
 
Substitute
Use Arithmetic

Really, that's it

Rewrite the expression. Rather than write 'x', write '3'.
 
its not that easy for me lol it has been over 7 years since i have done this stuff done be mean
 
and what do i do about the 2y i know y is 4 but what in the world lol do i muliply the 2 and 4
 
sughapuddie said:
ok i have not done math in a long time i have this problem and i need to be refreshed lol

evaluate the expression with the given values. if necessary round to the nearest tenth.

(x+2y)^2 x=3 y=4
Click to expand...


I don't think anyone is being "mean."

You are told that you should use 3 for x and 4 for y.

(x + 2y)^2

Substitute 3 for x and 4 for y: (and yes, 2y means 2 TIMES y, or 2*y)

(3 + 2*4)^2

Now it is just arithmetic. The "order of operations" is covered in elementary school...you can find numerous reviews on the Internet (do a search for "order of operations" on your favorite search engine).

If you are still having trouble with the arithmetic part, please repost and show us what you have tried.
 
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