What is the integral of (6x^2)/(x^3-4) ?

The integral of (6x^2)/(x^3-4) is 2ln|x^3-4|+C

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integral of (6x^2)/(x^3-4)

\int \frac{6 x ^{2}}{x ^{3} - 4} d x

2 ln x^{3} - 4 + C

Solution steps

\int \frac{6 x ^{2}}{x ^{3} - 4} d x

Take the constant out:

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

= 6 \cdot \int \frac{x ^{2}}{x ^{3} - 4} d x

Apply u-substitution

= 6 \cdot \int \frac{1}{3 u} d u

Take the constant out:

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

= 6 \cdot \frac{1}{3} \cdot \int \frac{1}{u} d u

Use the common integral:

\int \frac{1}{u} d u = ln (∣ u ∣)

= 6 \cdot \frac{1}{3} ln ∣ u ∣

Substitute back

u = x^{3} - 4

= 6 \cdot \frac{1}{3} ln x^{3} - 4

Simplify

6 \cdot \frac{1}{3} ln x^{3} - 4 : 2 ln x^{3} - 4

= 2 ln x^{3} - 4

Add a constant to the solution

= 2 ln x^{3} - 4 + C

What is the integral of (6x^2)/(x^3-4) ?
The integral of (6x^2)/(x^3-4) is 2ln|x^3-4|+C