(1/2)log2$\sqrt{2}$
6x^2 + 7x + 9 = 11x^2
4/5*(-2/3)-2/5*1/3+3/5*4/5
3x- 9x^2+10 = 0
5/16 + 1/8 =
-8--9
1874223
8271561
11765427
6.89 divided by 1.56
(1/2)log $\sqrt{8}$
x^2+4x