问题
解答题
ab(x2+1)+x(a2+b2)
答案
ab(x2+1)+x(a2+b2)
=abx2+ab+xa2+xb2
=abx2+xb2+ab+xa2
=bx(ax+b)+a(b+ax)
=(bx+a)(ax+b).
ab(x2+1)+x(a2+b2)
ab(x2+1)+x(a2+b2)
=abx2+ab+xa2+xb2
=abx2+xb2+ab+xa2
=bx(ax+b)+a(b+ax)
=(bx+a)(ax+b).