Find the absolute maximum of f ( x ) = ln ( x 2 + x + 1 ) {\displaystyle f(x)=\ln(x^{2}+x+1)} over the interval [ − 1 , 1 ] . {\displaystyle [-1,1].}
![{\displaystyle [-1,1].}](https://wiki.ubc.ca/api/rest_v1/media/math/render/svg/4ca7e11ebbb9225cdba1609c129e46d0ec5101a0)