Задача 66545 -6(0,5x-1,5)-4,5x-8= при x=2/3 ...

635b1998555185310e5a9529

28.10.2022 02:55:06

-6(0,5x-1,5)-4,5x-8=
при x=2/3

5f3ea7e3faf909182968ddd9

28.10.2022 08:32:55

★

–6(0,5x–1,5)–4,5x–8=-6*0,5x-6*(-1,5)-4,5x-8=-3x-4,5x+9-8=-7,5x+1

при x=[b]2/3[/b]

-7,5*([b]2/3[/b])+1=-(75/10)*(2/3)+1=-(25/5)+1=-5+1=-4