Question

If x to the power of 2 is equal to x. Find the value of x.

Answer 1

HI,
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Question:-$2^{x}$=20

Trick:-Use logarithms ...

Answer:-

Solve Exponent.


$2^{x}$=20


log($2^{x}$)=log(20)              (Take log of both sides)


x*(log(2))=log(20)


x= $\frac{log (20)}{log (2)}$


x=4.321928
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