Mathematic Problems
1+a·1+a33a·39+18a-1+9a-23
1+a·1+a33a·39+18a-1+9a-23
=1+a·1+a333a·39+18a+9a23
=1+a463a·39a2+18a+9a23
=1+a463a·3a29a2+18a+93
=1+a463a·3a49a2+2a+13
=1+a427a36·3a481a2+2a+123
=1+a427a36·3a481a2+2a+126
=1+a427a3·3a4811+a226
=1+a427a3·3a4811+a46
=3a27·816
=a9·816
=a69·816
=a67296
=a63
A=1+a·1+a33a·39+18a-1+9a-23=a63