What is the integral of sqrt(1+4x) ?

The integral of sqrt(1+4x) is 1/6 (1+4x)^{3/2}+C

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integral of sqrt(1+4x)

\int 1 + 4 x d x

\frac{1}{6} (1 + 4 x)^{\frac{3}{2}} + C

Solution steps

\int 1 + 4 x d x

Apply u-substitution

: \int \frac{u}{4} d u

= \int \frac{u}{4} d u

Take the constant out:

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

= \frac{1}{4} \cdot \int u d u

Apply the Power Rule

: \frac{2}{3} u^{\frac{3}{2}}

= \frac{1}{4} \cdot \frac{2}{3} u^{\frac{3}{2}}

Substitute back

u = 1 + 4 x

= \frac{1}{4} \cdot \frac{2}{3} (1 + 4 x)^{\frac{3}{2}}

Simplify

\frac{1}{4} \cdot \frac{2}{3} (1 + 4 x)^{\frac{3}{2}} : \frac{1}{6} (1 + 4 x)^{\frac{3}{2}}

= \frac{1}{6} (1 + 4 x)^{\frac{3}{2}}

Add a constant to the solution

= \frac{1}{6} (1 + 4 x)^{\frac{3}{2}} + C

\frac{1}{s} \cdot \frac{1}{s + 1}

\int 8 sin^{2} (x + \frac{π}{12}) d x

n = 1 \sum \infty \infty

\int \frac{1}{x ^{\frac{3}{2}} + x ^{\frac{1}{2}}} d x

f (x) = \frac{x - 1}{x ^{2}}

What is the integral of sqrt(1+4x) ?
The integral of sqrt(1+4x) is 1/6 (1+4x)^{3/2}+C