Sunday

September 21, 2014

September 21, 2014

Posted by **Frank** on Friday, October 15, 2010 at 2:04am.

- calculus -
**drwls**, Friday, October 15, 2010 at 7:42amLet 2x^3+15x^2+6x+23 = u

du = 6x^2 + 30x + 6

= 6(x^2 + 5x + 1)dx

You got lucky with this one!

Therefore the integrand can be written

(1/6)du/u^1/2

and the integral is

(1/3)*u^1/2

= (1/3)(2x^3+15x^2+6x+23)^1/2

**Answer this Question**

**Related Questions**

Integral calculus - Please do help solve the followings 1) Integrate e^4 dx 2) ...

Algebra - I need help trying to put the correct vocabulary words when solving ...

calculus - 1) Integrate Cos^n(x) dx 2) Integrate e^(ax)Sinbx dx 3) Integrate (...

Calculus - 6.] Replace the integral in exercise 5 (int. (1/ 1 – t) dt a = 0, b...

calculus 2 - Justify, with a written explanation or a mathematical reasoning ...

Algebra - I need help trying to put the correct vocabulary words when solving ...

Calculus - Use the Evaluation Theorem to find the exact value of the integral...

math - Solve by elimination 5x+y=2 3x+y=1 This is what I got : 3(5x+y=2) -5(3x+y...

Calculus AB - Please help me integrate this equation using partial fractions: ...

Calculus - How do you integrate [(x^2)(cos(2(x^3)))]? I tried to integrate by ...