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How do you solve #2^x=15#?

1 Answer

Aug 2, 2016

#x=color(green)(3.906891)# (approximately)

Explanation:

Given
#color(white)("XXX")2^x=15#

Since #log_2(2^x)=x#
#color(white)("XXX")x=log_2 15#

Using a calculator #log_2 15 ~~3.906891#

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