分解因式:(ax-by)2+(ay+bx)2的结果是_.
问题描述:
分解因式:(ax-by)2+(ay+bx)2的结果是______.
答
(ax-by)2+(ay+bx)2
=a2x2-2abxy+b2y2+a2y2+2abxy+b2x2
=a2(x2+y2)+b2(x2+y2)
=(x2+y2)(a2+b2).
故答案为:(x2+y2)(a2+b2).