Choose the correct simplification of the expression

Question

anonymous · Answer

um, wat expression?

anonymous · Answer

sorry. I forgot lol.

anonymous · Answer

I only have 3 left. can you help???

anonymous · Answer

the answer is a.

anonymous · Answer

my medal?

anonymous · Answer

attachment

lyrae · Answer

@ragooc Im sorry but that's not correct. The answer should be D (4x / y)^2 = (4x)^2 / y^2 = 16x^2 / y^2 http://www.wolframalpha.com/input/?i=%284x+%2F+y%29^2

anonymous · Answer

oops sorry but hey look at my question

anonymous · Answer

i need help on the one  i sent a few minutes ago.

anonymous · Answer

@Notamathgenius

lyrae · Answer

Try using this rule: $$\frac{a ^{i}}{a^{j}} = a ^{i-j}$$

notamathgenius · Answer

It is A

anonymous · Answer

thanks(:

lyrae · Answer

notamathgenius · Answer

How is not A, you take {4x}^2 which is 4x^2 Its not hard!

lyrae · Answer

anonymous · Answer

attachment

notamathgenius · Answer

That one you have to do on your won, if i did it you would have the answer. :P just replace X with a number and simplify it :)

notamathgenius · Answer

OWN*

lyrae · Answer

anonymous · Answer

why the wink? o.o

notamathgenius · Answer

No because it is not in the brackets with 4x. therefor it makes it go ALL AROUND as i call it. Haleyy I am hawt thats why ;D

anonymous · Answer

ohhk xD

notamathgenius · Answer

^_^ yep :P

anonymous · Answer

help me pweaaase on that last one c':

notamathgenius · Answer

$$\frac{ 4^2 }{ 8^2 }$$ show how it simplifies

anonymous · Answer

subtract 2 and 2, getting 0. so it is just 4/8 now?

notamathgenius · Answer

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