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Popular >

integral of (3x+1)

Solution

\int (3 x + 1) d x

Solution

\frac{3 x ^{2}}{2} + x + C

Solution steps

\int 3 x + 1 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

= \int 3 x d x + \int 1 d x

\int 3 x d x = \frac{3 x ^{2}}{2}

\int 1 d x = x

= \frac{3 x ^{2}}{2} + x

Add a constant to the solution

= \frac{3 x ^{2}}{2} + x + C

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Frequently Asked Questions (FAQ)

What is the integral of (3x+1) ?
The integral of (3x+1) is (3x^2)/2+x+C