填空:(1)+______=(x-______)2;(2)x2-______+9=(x______)2.

发布时间:2020-08-06 07:09:24

填空:
(1)+______=(x-______)2;
(2)x2-______+9=(x______)2.

网友回答

解:(1)x2-x+=(x-)2;

(2)x2-6x+9=(x-3)2.
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