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View Full Version : I must be really stupid!


abbiexoxo
Mar 28, 2007, 05:17 PM
hey! I'm abbie I'm new @ this website I've got a test in Algebra II tmrw and my mind is completely blank! I don't remember at all how to do this problem!! Please help?! Simplify the following. 27^√18 ∙ 81^√50

galactus
Mar 28, 2007, 05:32 PM
27^{\sqrt{18}}\cdot{81}^{\sqrt{50}}

27^{\sqrt{9\cdot{2}}}\cdot{81}^{\sqrt{25\cdot{2}}}

(27^{3})^{\sqrt{2}}\cdot(81^{5})^{sqrt{2}}

19683^{\sqrt{2}}\cdot{3486784401^{\sqrt{2}}

68630377364883^{\sqrt{2}}


Is this what you mean?

asterisk_man
Mar 28, 2007, 05:55 PM
Cute, I don't recall ever seeing a square root in the exponent before. And judging by the crazy answer I think there's a chance that abbie has written her question incorrectly. Abbie, can you double check it for us?