> 数学 >
因式分解 x⁴-2x²y-3y²+6y-4
应为x⁴-2x²y-3y²+8y-4
人气:184 ℃ 时间:2019-12-20 01:56:21
解答
原式=x^4-2x²y+y²-4y²+8y-4
=(x²-y)²-4(y-1)²
=(x²-y+2y-2)(x²-y-2y+2)
=(x²+y-2)(x²-3y+2)
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版