Simplify the following expression:
A=-12-3-2·75-1·-4025-14·66·104
A=-22·3-3-2·52·3-1·152-14·3·26·5·24
A=-22·3+6·5-2·3-152-4·36·26·54·24
A=-212·36·5-2·3-15-8·36·26·54·24
A=5-2·3-1·2125-4·210
A=54·2252·3
A=52·223
A=25·43
A=1003
Properties of Exponents:
am·an=am+n
aman=am-n
amn=am·n
ab-n=ban
a0=1