Răspuns:
Explicație pas cu pas:
A) x*y(0.3*5+1.25+0.5*0.5) = x*y(1.5+1.25+0.25)= x*y*(2.75+0.25)= x*y*3.00= x*y*3
B)a*b[0.(5)*0.3+0.5*1.(6)-2.3*3+0.9]=
AB(5/9*3/10+5/10*(16-1)/9-23/10*3+9/10)
AB(1/6+5/6-69/10+9/10)
AB(6/6-60/10)
AB(10/10-60/10)
AB*(-50/10)=-5ab
C)0.7a+0.7b-0.7c-0.6a-0.3b-0.6c-0.1a+c=0.4b-0.3c