(1)计算:20100?32+|?4|+(12)?1+8.(2)先化简,再求值:(a-2)(a+2)-a(a-2),其中a=-1
(1)计算:20100?32+|?4|+(12)?1+8.(2)先化简,再求值:(a-2)(a+2)-a(a-2),其中a=-1....
(1)计算:20100?32+|?4|+(12)?1+8.(2)先化简,再求值:(a-2)(a+2)-a(a-2),其中a=-1.
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