Răspuns :
Răspuns:
2×2×7:[(2×2+2:2)×2-2:2×(2×2-2:2)]=
4·7:[(4+1)·2-2:2·(4-1)]=
28:(5·2-2:2·3)=
28:(10-3)=
28:7=
4
Răspuns: [tex]\color{red}\LARGE \boxed{\bf 4}[/tex]
Explicație pas cu pas:
[tex]\large \bf 2\cdot2\cdot7:[(2\cdot2+2:2)\cdot2-2:2\cdot(2\cdot2-2:2)] =[/tex]
[tex]\large \bf 2\cdot2\cdot7:[(4+1)\cdot2-2:2\cdot(4-1)] =[/tex]
[tex]\large \bf 2\cdot2\cdot7:(5 \cdot2-2:2\cdot 3) =[/tex]
[tex]\large \bf 2\cdot2\cdot7:(10-1\cdot 3) =[/tex]
[tex]\large \bf 2\cdot2\cdot7:(10-3) =[/tex]
[tex]\large \bf 2\cdot2\cdot7:7 =[/tex]
[tex]\large \bf 4 \cdot7:7 =[/tex]
[tex]\large \bf 4 \cdot 1 =[/tex]
[tex]\color{teal}\Large \boxed{\bf 4}[/tex]
==pav38==