Question

Va roog mult! Dau coroana Trebuie rezolvat prin factor comun
a) -5 × 27=6×27-27
b)32×51+47×64-51×23-64×27=
c)15×(-32)+(-15×5)+4×(-27)-(-11)×(-27)=

Answer 1

Răspuns:

Explicație pas cu pas:

a) -5 × 27=6×27-27=27(6-1)=27×5    Fals ??????

b)32×51+47×64-51×23-64×27=51(32-23)+64(47-27)=51×9+64×20=459+1280=1739

c)15×(-32)+(-15×5)+4×(-27)-(-11)×(-27)=15(-32-5)+(-27)(4+11)=-15×37-27×15=

=15(-37-27)=-15×64=-960