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If xy 0 and x -y, =
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19 May 2018, 15:13
19 May 2018, 15:13
Expert Reply
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Question Stats:
95% (00:58) correct
4% (01:03) wrong based on 21 sessions
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If \(xy \neq 0\) and \(x \neq -y\),\(\frac{x^{36}-y^{36}}{(x^{18}+y^{18})(x^{9}+y^{9})}\) =
(A) \(1\)
(B) \(x^2 - y^2\)
(C) \(x^9 - y^9\)
(D) \(x^{18} - y^{18}\)
(E) \(\frac{1}{x^9 - y^9}\)
(A) \(1\)
(B) \(x^2 - y^2\)
(C) \(x^9 - y^9\)
(D) \(x^{18} - y^{18}\)
(E) \(\frac{1}{x^9 - y^9}\)
Re: If xy 0 and x -y, =
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21 May 2018, 21:24
21 May 2018, 21:24
1
(a+b)*(a-b)= a^2-b^2.
Using this formula to further solve the above equation leaves us with option C
Using this formula to further solve the above equation leaves us with option C
Re: If xy 0 and x -y, =
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27 Sep 2020, 11:33
27 Sep 2020, 11:33
Can someone explain this in more detail? I'm not sure what to do on this one 
