填上适当的数,使下面各等式成立:(1)x2+3x+______=(x+_____
题型:填空题
问题:
填上适当的数,使下面各等式成立: (1)x2+3x+______=(x+______)2; (2)______-3x+
(3)4x2+______+9=(2x______)2; (4)x2-px+______=(x-______)2; (5)x2+
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填上适当的数,使下面各等式成立: (1)x2+3x+______=(x+______)2; (2)______-3x+
(3)4x2+______+9=(2x______)2; (4)x2-px+______=(x-______)2; (5)x2+
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