> 数学 >
因式分解x^2-9x^2y^2+6xy-1
人气:241 ℃ 时间:2020-01-31 23:49:21
解答
x^2-9x^2y^2+6xy-1
=x^2-(9x^2y^2-6xy+1)
=x^2-(3xy-1)^2
=(x+3xy-1)(x-3xy+1)
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版