-6x(0,5x-1,5)-4,5x-8, при x=2/3

Question

-6x(0,5x-1,5)-4,5x-8, при x=2/3

Answer 1

-6*⅔*(0.5*⅔-1.5)-4.5*⅔-8 =
= -4*(10/3-15/10)-45/10*⅔ =
= -4*(-5)-15/5-8 =
= 20-3-8=
= 9