(ax+by)²+(ay-bx)²+2(ax+by)(ay-bx) a(ab+bc+ac)-abc 用分解因式法哦

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(ax+by)²+(ay-bx)²+2(ax+by)(ay-bx) a(ab+bc+ac)-abc 用分解因式法哦
(ax+by)²+(ay-bx)²+2(ax+by)(ay-bx) a(ab+bc+ac)-abc 用分解因式法哦

(ax+by)²+(ay-bx)²+2(ax+by)(ay-bx) a(ab+bc+ac)-abc 用分解因式法哦
(ax+by)²+(ay-bx)²+2(ax+by)(ay-bx)
=(ax+by+ay-bx)²
a(ab+bc+ac)-abc
=a(ab+bc+ac-bc)
=a(ab+ac)
=a²(b+c)