Vervollständigen der Klammer.

$6\mathrm{a}{\mathrm{c}}^3:3\mathrm{a}{\mathrm{c}}^2=2\mathrm{c}\backslash hspace\{6mm\}\backslash mathrm\{6ac^3:3ac^2=2c\}$

$-27{\mathrm{a}}^2{\mathrm{c}}^2:3\mathrm{a}{\mathrm{c}}^2=-9\mathrm{a}\backslash mathrm\{-27a^2c^2:3ac^2=-9a\}$

$6\mathrm{a}{\mathrm{c}}^3\text{–}27{\mathrm{a}}^2{\mathrm{c}}^2=3\mathrm{a}{\mathrm{c}}^2\cdot (2\mathrm{c}-9\mathrm{a})\backslash mathrm\{6ac³\; –\; 27a²c²\; =\; 3ac²\backslash cdot\; (2c-9a)\}$