Home » Blog » Compute an integral of x^2 Compute an integral of x^2 by RoRi July 21, 2015 Compute: Using the formula for the integral of polynomials, we compute: Related
![\[ \int_{-3}^3 x^2 \, dx. \]](https://www.stumblingrobot.com/wp-content/ql-cache/quicklatex.com-e14e8e7e822874c1dfa4b388e28b77c4_l3.png "Rendered by QuickLaTeX.com")
![\[ \int_{-3}^3 x^2 \, dx = \left. \frac{x^3}{3} \right|_{-3}^3 = \frac{27}{3} - \frac{-27}{3} = 9+9= 18. \]](https://www.stumblingrobot.com/wp-content/ql-cache/quicklatex.com-0b9aae1e27024196ab249f7c11715a30_l3.png "Rendered by QuickLaTeX.com")