化简:(x+1)(4x-1)-(2x-1)(2x+1)
问题描述:
化简:(x+1)(4x-1)-(2x-1)(2x+1)
写出化简过程
答
(x+1)(4x-1)-(2x-1)(2x+1)
=4x^2+3x-1-4x^2+1
=3x