> 数学 >
x^3+2x^2-10x-20
人气:162 ℃ 时间:2020-05-21 03:20:55
解答
x^3+2x^2-10x-20
=x^2(x+2) -10(x+2)
=(x+2)(x^2-10)
推荐
猜你喜欢
© 2025 79432.Com All Rights Reserved.
电脑版|手机版