What is the integral of 6/((x-8)(x-2)) ?

The integral of 6/((x-8)(x-2)) is ln|x-8|-ln|x-2|+C

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integral of 6/((x-8)(x-2))

\int \frac{6}{( x - 8 ) ( x - 2 )} d x

ln ∣ x - 8 ∣ - ln ∣ x - 2 ∣ + C

Solution steps

\int \frac{6}{( x - 8 ) ( x - 2 )} d x

Take the constant out:

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

= 6 \cdot \int \frac{1}{( x - 8 ) ( x - 2 )} d x

Take the partial fraction of

\frac{1}{( x - 8 ) ( x - 2 )} : \frac{1}{6 ( x - 8 )} - \frac{1}{6 ( x - 2 )}

= 6 \cdot \int \frac{1}{6 ( x - 8 )} - \frac{1}{6 ( x - 2 )} d x

Apply the Sum Rule:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= 6 (\int \frac{1}{6 ( x - 8 )} d x - \int \frac{1}{6 ( x - 2 )} d x)

\int \frac{1}{6 ( x - 8 )} d x = \frac{1}{6} ln ∣ x - 8 ∣

\int \frac{1}{6 ( x - 2 )} d x = \frac{1}{6} ln ∣ x - 2 ∣

= 6 (\frac{1}{6} ln ∣ x - 8 ∣ - \frac{1}{6} ln ∣ x - 2 ∣)

Simplify

6 (\frac{1}{6} ln ∣ x - 8 ∣ - \frac{1}{6} ln ∣ x - 2 ∣) : ln ∣ x - 8 ∣ - ln ∣ x - 2 ∣

= ln ∣ x - 8 ∣ - ln ∣ x - 2 ∣

Add a constant to the solution

= ln ∣ x - 8 ∣ - ln ∣ x - 2 ∣ + C

\int \frac{1}{x \cdot x} d x

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What is the integral of 6/((x-8)(x-2)) ?
The integral of 6/((x-8)(x-2)) is ln|x-8|-ln|x-2|+C