Răspuns:
Explicație pas cu pas:
a)(-5+3)^2=(-5)^2+3^2+2*(-5)*3
(-2)^2=25+9-30
4=34-30
4=4 A
b) (-5-3)^2=(-5)^2+3^2-2*(-5)*3
(-8)^2=25+9+30
64=34+30
64=64 A
c) (-5-3)(-5+3)=(-5)^2-3^2
-8*(-2)=25-9
16=16 A
d) (-5+3)^3=(-5)^3+3^3+3*(-5)*3[(-5)+3]
(-2)^3=-125+27+(-45)*(-2)
-8= -98+90
-8=-8 A
