Tính: 3/4 (-x)^3 : 1/8 x
Giải thích
\[\frac{3}{4}\](-x)3 : \[\frac{1}{8}\]x = -\[\frac{3}{4}\]x3 : \[\frac{1}{8}\]x = \[\left[ {\left( { - \frac{3}{4}} \right):\frac{1}{8}} \right]\] x3 – 1 = -6x2.
\[\frac{3}{4}\](-x)3 : \[\frac{1}{8}\]x = -\[\frac{3}{4}\]x3 : \[\frac{1}{8}\]x = \[\left[ {\left( { - \frac{3}{4}} \right):\frac{1}{8}} \right]\] x3 – 1 = -6x2.