Question

(4,2х+0,8у)*6+3*(2,6х+0.3у) при х=0,1 у=1

Answer 1

(4,2*0,1+0,8*1)*6+3(2,6*0,1+0,3*1)=(0,42+0,8)*6+3(0,26+0,3)=7,32+1,68=9

Answer 2

= 25.2x +4.8y + 7.8x +0.9y= 33x+5.7y = 33*0.1 +5.7*1 = 3.3 +5.7 = 9  Все решено. Рад помочь)