Răspuns:
-1x(+2)+(-3)x(+4)+(-5)x(+6)=
-2+(-12)+(-30)=
-2-12-30=
- 44
b). -5x(-4-3x(-2-1))=
-5x(-7x(-3))=
-5x21=
- 105
c). 11x(-2)+(-4)x(100-4x(-26))=
-22+(-4x(-100+104))=
-22+(-4)x4=
-22-16= - 38
d). 200-7x((-25+4x7)-3x(11-13)=
200-7x(-25+28)-3x(-2))=
200-7x(3+6)=
200-7x9=
200-63=
137
e). -2x(-2)x(-2)x(1753-1748)+1)))=
-2x(-2)x(-2)x5+1)=
-2x(-2)x(-2x5+1)=
-2x(-2x(-9)=
-2x(18)=
-36
Explicație pas cu pas:
