问题描述:
利用x^2+(p+q)x+pq型式子的因式分解下列多项式
(1)x^2+7x+10; (2)X^2-2x-8;
(3)y^2-7y+12; (4)x^2+7x-18.
(1)x^2+7x+10; (2)X^2-2x-8;
(3)y^2-7y+12; (4)x^2+7x-18.
问题解答:
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