因式分解x^2-2x-4y^2+1

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/29 20:53:01
因式分解x^2-2x-4y^2+1因式分解x^2-2x-4y^2+1因式分解x^2-2x-4y^2+1x^2-2x-4y^2+1=x^2-2x+1-4y^2按照x的降幂排列=(x-1)^2-4y^2=

因式分解x^2-2x-4y^2+1
因式分解x^2-2x-4y^2+1

因式分解x^2-2x-4y^2+1
x^2-2x-4y^2+1
=x^2-2x+1-4y^2按照x的降幂排列
=(x-1)^2-4y^2
=(x-1)^2-(2y)^2
=(x-1-2y)(x-1+2y) 逆用平方差公式进行因式分解

x^2-2x-4y^2+1
=x^2-2x+1-4y^2
=(x-1)^2-4y^2
=(x-1-2y)(x-1+2y)

x^2-2x-4y^2+1
=x^2-2x+1-4y^2
=(x-1)^2-4y^2(运用平方差公式,自己做吧)
=

x^2-2x-4y^2+1
=x^2-2x+1-4y^2
=(x-1)^2-4y^2
=(x-1+2y)(x-1-2y)