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Efectuati inmultirea
a) 7x²y³z (-xyz³)
c) aveti exercitiul in imagine
b) (-2,8ab)·(-5a³b)
d) √5t²·(-6√5tz⁴)


Efectuati Inmultirea A 7xyz Xyz C Aveti Exercitiul In Imagine B 28ab5ab D 5t65tz class=

Răspuns :

a) 7x²y³z (-xyz³)= -7x³y⁴z⁴

c) 12ax/17
· (-1 5/12a³xy)=12ax/17· (-17/12a³xy)=-a⁴x²y
 
b) (-2,8ab)·(-5a³b) =14
a⁴b²

d) √5t²·(-6√5tz⁴) =-30
t³z⁴)