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# If x and y belong to the set {2, 4}, and x^ky = x^(ly2−8), is kl > 2?

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Joined: 02 Sep 2009
Posts: 49916
If x and y belong to the set {2, 4}, and x^ky = x^(ly2−8), is kl > 2?  [#permalink]

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01 Oct 2018, 04:40
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Difficulty:

95% (hard)

Question Stats:

32% (02:10) correct 68% (02:24) wrong based on 38 sessions

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If x and y belong to the set {2, 4}, and $$x^{ky} = x^{(ly2−8)}$$, is $$kl > 2$$?

(1) $$k = −6$$

(2) $$3l − k = 3$$

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Joined: 21 Jul 2018
Posts: 38
Re: If x and y belong to the set {2, 4}, and x^ky = x^(ly2−8), is kl > 2?  [#permalink]

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01 Oct 2018, 04:48
Submitted option C as an answer but feel like B is the answer, if anyone is able to solve with B then could you please post the solution.
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Intern
Joined: 21 Jul 2018
Posts: 38
Re: If x and y belong to the set {2, 4}, and x^ky = x^(ly2−8), is kl > 2?  [#permalink]

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11 Oct 2018, 11:58
Bunuel could you please provide assist to understand why D is answer.
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Re: If x and y belong to the set {2, 4}, and x^ky = x^(ly2−8), is kl > 2? &nbs [#permalink] 11 Oct 2018, 11:58
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