Question

Найдите числовое значение выражения :
(-4,2) x (2x + 1/2y) + 2,4(y-x) при x = 4 1/2 y= -1 1/3

Answer 1

-8.4x+2.1y+2.4y-2.4x=2.5y-10.8x

При х=-11/3=-3 2/3
у=4 1/2 =>2.5•4 1/2 -10.8•(-3 2/3)=
=11.25+39.6=50.85