What is the integral of 4*2^x ?

The integral of 4*2^x is (2^{x+2})/(ln(2))+C

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integral of 4*2^x

\int 4 \cdot 2^{x} d x

\frac{2 ^{x + 2}}{ln ( 2 )} + C

Solution steps

\int 4 \cdot 2^{x} d x

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 4 \cdot \int 2^{x} d x

\int a^{x} d x = \frac{a ^{x}}{ln a}

= 4 \cdot \frac{2 ^{x}}{ln ( 2 )}

Simplify

4 \cdot \frac{2 ^{x}}{ln ( 2 )} : \frac{2 ^{x + 2}}{ln ( 2 )}

= \frac{2 ^{x + 2}}{ln ( 2 )}

Add a constant to the solution

= \frac{2 ^{x + 2}}{ln ( 2 )} + C

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