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How to use it?
Integral of d{x}:
Integral of 1/sqrt(x^2+1)
Integral of x^3*ln(x)
Integral of x(x^2+3)
Integral of x^2*lnx
Derivative of:
-3*x
Limit of the function:
-3*x
Identical expressions
- three *x
minus 3 multiply by x
minus three multiply by x
-3x
-3*xdx
Similar expressions
3*x
x^(2)*e^-3x
(x-3x²)dx
1/(1-2x-3x^2)
(3x-2)/(2-3x+5x^2)
x/(x^2-3x+2)

Solving integrals/ -3*x

Integral of -3*x dx

The solution

You have entered [src]

$$\int\limits_{0}^{1} \left(- 3 x\right)\, dx$$

Integral(-3*x, (x, 0, 1))

Detail solution

The integral of a constant times a function is the constant times the integral of the function:

$\int \left(- 3 x\right)\, dx = - 3 \int x\, dx$
1. The integral of $x^{n}$ is $\frac{x^{n + 1}}{n + 1}$ when $n \neq -1$ :
  
  $\int x\, dx = \frac{x^{2}}{2}$
So, the result is: $- \frac{3 x^{2}}{2}$
Add the constant of integration:

$- \frac{3 x^{2}}{2}+ \mathrm{constant}$

The answer is:

$- \frac{3 x^{2}}{2}+ \mathrm{constant}$

The answer (Indefinite) [src]

  /                 2
 |               3*x 
 | -3*x dx = C - ----
 |                2  
/

$$\int \left(- 3 x\right)\, dx = C - \frac{3 x^{2}}{2}$$

Simplify

The graph

Plot the graph f(x)

The answer [src]

-3/2

$$- \frac{3}{2}$$

=

-3/2

$$- \frac{3}{2}$$

-3/2

Numerical answer [src]

-1.5

-1.5

The graph

Integral of -3*x dx

Use the examples entering the upper and lower limits of integration.