Question

aduceti expresia la o forma mai simpla a+a+a+a+a+a+a+a+a=,, a*a*a*a*a*a*a*a*a=,, (x+y)+(x+y)+(x+y)+(x+y)=,, (x+y)*(x+y)*(x+y)*(x+y)=,, a+a+a+b+b+b=,, a*a*a*b*b*b=,,
n+m+m+n+n+m=,, n*m*m*n*n*m=,,

Answer 1

a+a+a+a+a+a+a+a+a=9a
a·a·a·a·a·a·a·a··a=a la puterea 9
(x+y)+(x+y)+(x+y)+(x+y)=4(x+y)
(x+y)·(x+y)·(x+y)·(x+y)=(x+y) la puterea 4
a+a+a+b+b+b=3a+3b=3(a+b)
a·a·a·b·b·b=a³·b³=(a·b)³
n+m+m+n+n+m=3n+3m=3(n+m)
n·m·m·n·n·m=n³·m³=(n·m)³