What is the answer to 2^x=15 ?

The answer to 2^x=15 is x=(ln(15))/(ln(2))

The solution is x=(ln(15))/(ln(2))

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2^x=15

2^{x} = 15

x = \frac{ln ( 15 )}{ln ( 2 )}

Decimal Notation

x = 3.90689 \dots

Solution steps

2^{x} = 15

Apply exponent rules

x ln (2) = ln (15)

Solve

x ln (2) = ln (15) : x = \frac{ln ( 15 )}{ln ( 2 )}

x = \frac{ln ( 15 )}{ln ( 2 )}

2^{x} = 11

2^{x} = 13

3^{x} (3^{x} - 27) = 0

5 \cdot 2 0^{x} = 8 \cdot 2^{x}

t, f = a e^{- a t} u (t)