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exponents

Expert replies
by gmataug08 » Tue Nov 25, 2008 7:56 pm
If [27^(4x+2)] x {162^(-2x)] x 36^x x [9(6-2x)] = 1 , then what is the value of x?

A) -9

B) -6

C) 3

D) 6

E) 9

OA : A

Is there any tricks to simplify the exponents to form an equation? The usual standard way takes more than 2 minutes. TIA.
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Source: — Problem Solving |

by cramya » Tue Nov 25, 2008 8:04 pm
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