(Зм+6м)-37дм+90 см=
(300см+600см)-370см+90см=620см=6м2дм
Х^2 = 16х
х^2 - 16х = 0
х(х-16) = 0
х=0 , х=16
Ответ 0
1) 2abc-4abc+6abc=4abc
2)9abc-12abc+3abc=abc
(-5,8+3,6)(-1,2)-3,04=2,2*1,2-3,04= -0,4
-6,03*2,1-(-0,14)(-0,05)=-12,663-0,007= -12,67
7/18*(-1 4/7)-(-4/21)(-1 1/6)= -7/18*11/7-4/21*7/6= -11/18-4/18= -15/18= - 5/6
(-1 7/8*1 4/5+9/16)(-8/9)=( -3 6/16+9/16)( -8/9)=(- 2 13/16)(-8/9)=45/16*8/9=5/2=2 1/2=2,5