多项式(x^2+1)^2-4x^2因式分解结果是
问题描述:
多项式(x^2+1)^2-4x^2因式分解结果是
答
(x^2+1)^2-4x^2
=(x^2+1+2x)(x^2+1-2x)
=(x+1)^2(x-1)^2
=(x+1)(x+1)(x-1)(x-1)