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-(-2)2=________;
若|x-1|=3,则x=________;
若a2=4,则a3=________.
(-a2)2·(-a2)3=________;[-3(x+y)2]3=________;
(-a2)2·(-a2)3=________
(-a2+0.2a)2=________.
(________)-(a2+2ab)=-ab-b2.