Răspuns :
a*(b+c)=a*b+a*c
stim ca a*b=a*c=-4
deci a*(b+c)=a*b+a*c=-4+(-4)=-8
Răspuns:
a(b+c)=ab+ac
a(b+c)=-4+(-4)
a(b+c)=-4-4
a(b+c)= -8
a*(b+c)=a*b+a*c
stim ca a*b=a*c=-4
deci a*(b+c)=a*b+a*c=-4+(-4)=-8
Răspuns:
a(b+c)=ab+ac
a(b+c)=-4+(-4)
a(b+c)=-4-4
a(b+c)= -8