2^x-2(2^2-1)-> 2^x-2(3)
therefore equating RHS and LHS -> x-2 =13 so x=15.
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Source: Beat The GMAT — Problem Solving |
Hope this would be simpler than urs!!nisha.menon294 wrote:2^x-2(2^2-1)-> 2^x-2(3)
therefore equating RHS and LHS -> x-2 =13 so x=15.
2^x (1- 1/4) = 3 *( 2^13)
--> 2^x (3/4) =3 *( 2^13)
equating for x, we have;
2^x (1/4) =( 2^13)
x=15
