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Need help on 2 PS problems Please

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Source: — Problem Solving |
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by sanjana » Wed Oct 14, 2009 2:12 am
1)
2^x(1-2^-2) = 3 * 2^13

2^x(1-1/4) = 3 * 2^13

2^x(3)/2^2 = 3 * 2^13

2^(x-2) * 3 = 2^13 * 3

hence,x-2 = 13
x=15

2)
write 4 as 2^2 and then use 5^m * 2^m = 10^m
u will get m=35
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