Răspuns :
a) (-1)·(+2)+(-3)·(+4)+(-5)·(+6)= b) -5·[-4-3·(-2-1)]=
(-2)+(-12)+(-30)= -5·[-4-3·(-3)]=
(-14)+(-30)= -5·[-4-(-9)]=
-44 -5·(-4+9)=
-5·5=
-25
c) 11·(-4)·[-100-4·(-26)]= d) 200-7·[(-25+4·7)-3·(11-13)]=
11·(-4)·[-100-(-104)]= 200-7·[(-25+28)-3·(-2)]=
11·(-4)·[-100+104]= 200-7·[(3-(-6)]=
11·(-4)·(+4)= 200-7·(3+6)=
(-44)·(4)= 200-7·9=
-176 200- 63=
137
(-2)+(-12)+(-30)= -5·[-4-3·(-3)]=
(-14)+(-30)= -5·[-4-(-9)]=
-44 -5·(-4+9)=
-5·5=
-25
c) 11·(-4)·[-100-4·(-26)]= d) 200-7·[(-25+4·7)-3·(11-13)]=
11·(-4)·[-100-(-104)]= 200-7·[(-25+28)-3·(-2)]=
11·(-4)·[-100+104]= 200-7·[(3-(-6)]=
11·(-4)·(+4)= 200-7·(3+6)=
(-44)·(4)= 200-7·9=
-176 200- 63=
137
[tex]a).-1*(+2)+(-3)*(+4)+(-5)*(+6)= \\ =-2+(-12)+(-30)= \\ =-14+(-30)= \\ =-44 \\ b).-5*[-4-3*(-2-1)]= \\ =-5*[-4-3*(-3)]= \\ =-5*(-4+9)= \\ =-5*5= \\ =-25[/tex]
[tex]c).11*(-4)*[-100-4*(-26)]= \\ =11*(-4)*(-100+104)= \\ =11*(-4)*4= \\ =-44*4= \\ =-176 \\ d).200-7*[(-25+4*7)-3*(11-13)]= \\ =200-7*[(-25+28)-3*(-2)]= \\ =200-7*(3+6)= \\ =200-7*9= \\ =200-63= \\ =137[/tex]
[tex]c).11*(-4)*[-100-4*(-26)]= \\ =11*(-4)*(-100+104)= \\ =11*(-4)*4= \\ =-44*4= \\ =-176 \\ d).200-7*[(-25+4*7)-3*(11-13)]= \\ =200-7*[(-25+28)-3*(-2)]= \\ =200-7*(3+6)= \\ =200-7*9= \\ =200-63= \\ =137[/tex]