因式分解x-1-1/4x^2
问题描述:
因式分解x-1-1/4x^2
答
x-1-1/4x^2
=-(1/4x^2-x+1)
==-(1/2x-1)^2
因式分解x-1-1/4x^2
x-1-1/4x^2
=-(1/4x^2-x+1)
==-(1/2x-1)^2