6, 965 = 6 + 0,965
23,3 = 23 + 0,3
6,965 + 23,3 = ( 6 + 23) + (0,965 + 0,3) = 29 + 1,265 = 30, 265
Ответ: 30,265
X^3/3+1 =10
x^3/3 = 10-1
x^3/3 = 9
x^3 = 9*3
x^3 = 27
x = 3
㏒2 50 - 2㏒2 5=㏒2 50 - ㏒2 5²=㏒2 50 - ㏒2 25=
=㏒2 50/25=㏒2 2=1
X^2 - 1 = 0
X^2 = 1
X1 = 1
X2 = ( - 1 )
Ответ 1 и ( - 1 )
А)18с^2 - 2(9с^2-6с+1)= 18с^2- 18с^2+12с-2= 12с-2
Б)2а^2-6а+3а-9-8а+12а^2= 14а^2-11а-9