desfaceti parantezele: a) x(y+z) ; b) (y-x)z

Răspuns :

a) x*y+x*z
b)z*y-z*x
asa cred
a) x(y+z)= x*y+x*z
B) (y-x)z= y*z-x*z
 
*=inmultit,ca sa stii