Question

考研数学中遇到多项式除法,请问多项式除法公式.例:(ax+b)/(cx+d),

Answer 1

后面等式呢?

cx+d!=0

两边同时乘以cx+d

y=(ax+b)/(cx+d)

=[a/c(cx)+b]/(cx+d)

=[a/c(cx+d)-ad/c+b]/(cx+d)

=a/c+(b-ad/c)/cx+d

后面的式子上下除以c就得到了