Hi,(adsbygoogle = window.adsbygoogle || []).push({});

Curve: x(x+1)(x-2)

Find the area between the interval: (-1 to 2)

Answer:

The first thing I did was to find the x-intercepts: x=0, x=-1 and x=2

I then integrated the curve. I got: (x^{4}/4)-(x^{3}/3)-(x^{2})

I then found the area between 0 and -1 and the area between 0 and 2. I added the absolute of both areas and got 37/12. The book, however, claims it is 2.25.

Can anyone help me please?

Thanks!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Integration - Finding Areas

**Physics Forums | Science Articles, Homework Help, Discussion**