Правильно: a2·a5=a7, am·an=am+n, a0=1, am/an=am-n, 210/28=22, (b3)4=b12, (am)n=amn, ak·bk=(ab)k, (1312)0=1, 2k·5k=10k, a-n=1/an, 7-3·74·7=72, 92=34, 521/520=5, x4/x5=x-1, c-3·c3=1, (ab)n=an·bn, (a/b)n=an/bn, x1=x, ((72)3)-1=7-6, 32·2=26, 285/145=25, (0,5)20·221=2, 1/4=2-2, 25·5=53, (xk)8=x8k, x-7·xn=xn-7, (1/3)4·35=3, a0·a1=a, 210=28·4, Неправильно: a2·a3=a6, am·an=amn, a1=1, a0·a5=a0, 312/34=33 , am/an=am/n, (32)7=39, (ab)n=an+bn, 54-34=24, a4/b2=(a/b)2, (a/b)n=an-bn, a-n=-an, 73+23=93, (am)n=am+n, a0=a, 50=0, an+bn=(ab)n, an+bn=(a+b)n, an-bn=(a-b)n, (115)6=1111, x-2·x3=x-6, a2·a-8=a-16, 13·13c=132c, x14/x2=x7, f12-f6=f2, 214+314=514, 3·3n=9n, 5a+b=5a+5b, d3k=d3·dk, 7-5·75=7-25,

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