Ответ:\(2\sqrt6\cdot(-\sqrt6)=-2\cdot6=-12\).\(-(3\sqrt5)^2=-9\cdot5=-45\).\(\sqrt{1,44}-2(\sqrt{0,6})^2=1,2-2\cdot0,6=0\).\((0,1\sqrt{70})^2+\sqrt{1,69}=0,01\cdot70+1,3=2\).Ответ: а) −12; б) −45; в) 0; г) 2.