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Calculati: 5xy+5xz+22=?   stiind k x=4 si y+z=100

Răspuns :

5xy+5xz+22= 5x(y+z)+22=5*4*100+22=2022


5·x·y+5·x·z+22=
 5
·x·(y+z)+22=
5
·4·100+22=
2022