Posted by **Vanessa** on Wednesday, April 9, 2014 at 10:28pm.

Find the indefinite integral.

x^2(5 x^3 + 9)^3 dx

- Math -
**Reiny**, Wednesday, April 9, 2014 at 10:47pm
I observed that the derivative of the inside of the bracket sits out front as a multiple of that.

If that is the case, I just reverse by "thinking"

if dy/dx = x^2(5x^3 + 9)^3

y = (x^2/(15x^2)) (5x^3 +9)^4 * (1/4)+ c

= (1/60) (5x^3 + 9)^4 + c

- Math -
**Vanessa**, Wednesday, April 9, 2014 at 10:52pm
Thanks Reiny for all your help, I really appreciate it.

## Answer this Question

## Related Questions

- Calc BC - 1. Find the indefinite integral. Indefinite integral tan^3(pix/7)sec^2...
- Math - good day please help with this indefinite integral,especially what ...
- Calculus - Hello Everyone, I need help with Calc II. 1. Integral from 0 to 1 of...
- Math - 1. Evaluate the indefinite integral ([6x^2 + 12x^(3/2) +4x+9]/sqrt x)dx. ...
- Calculus II/III - A. Find the integral of the following function. Integral of (x...
- Indefinite Integrals - find the indefinite integral of (1/x)*(e^(-2log[ 3,x])) ...
- math - Evaluate the following indefinite integral by using the given ...
- math - Evaluate the following indefinite integral by using the given ...
- Calculus - Evaluate the integral: 16csc(x) dx from pi/2 to pi (and determine if ...
- calculus - Find the indefinite integral and check the result by differentiation...

More Related Questions