What is the integral of (2x+1)/(sqrt(x^2+x+1)) ?

The integral of (2x+1)/(sqrt(x^2+x+1)) is 2sqrt(x^2+x+1)+C

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integral of (2x+1)/(sqrt(x^2+x+1))

\int \frac{2 x + 1}{x ^{2} + x + 1} d x

2 x^{2} + x + 1 + C

Solution steps

\int \frac{2 x + 1}{x ^{2} + x + 1} d x

Apply u-substitution

= \int \frac{1}{u} d u

Apply the Power Rule

= 2 u^{\frac{1}{2}}

Substitute back

u = x^{2} + x + 1

= 2 (x^{2} + x + 1)^{\frac{1}{2}}

Apply radical rule:

a^{\frac{1}{n}} = n a

= 2 x^{2} + x + 1

Add a constant to the solution

= 2 x^{2} + x + 1 + C

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What is the integral of (2x+1)/(sqrt(x^2+x+1)) ?
The integral of (2x+1)/(sqrt(x^2+x+1)) is 2sqrt(x^2+x+1)+C