28800-32х =708
-32х=-280,92
8,78
(Х2-2ах+3ах -6а2)-(х2-3ах+ах-3ах) = (х2+ах-6а2)-(х2-5ах)=х2+ах-6а2-х2+5ах=
6ах-6а2 = 6(ах-а2)
0.01 = 0.1 * 0.1
0.04 = 0.2 * 0.2
0.09 = 0.3 * 0.3
175,7-205,17=175,70-205,17=175,53-205=170,53-200=-(199-170+1,00-0,53)=
=-(29+0,47)=-29,47