计算5y²-(y-2)-2(y-1)(y-5)
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计算5y²-(y-2)-2(y-1)(y-5)计算5y²-(y-2)-2(y-1)(y-5)计算5y²-(y-2)-2(y-1)(y-5)5y²-(y-2)-2
计算5y²-(y-2)-2(y-1)(y-5)
计算5y²-(y-2)-2(y-1)(y-5)
计算5y²-(y-2)-2(y-1)(y-5)
5y²-(y-2)-2(y-1)(y-5)
=5y²-y+2-2(y²-6y+5)
=5y²-y+2-2y²+12y-10
=3y²+11y-8
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元素=5y²-y+2-2y²+12y-10
=3y²+11y-8
5y²-(y-2)-2(y-1)(y-5)
= 5y² - y+2 - 2 (y² -6y + 5 )
= 5y² -y +2 - 2y² + 12y - 10
= 3y² +11y - 8
5y²-(y-2)-2(y-1)(y-5)
=5y²-y+2-2(y²-6y+5)
=5y²-y+2-2y²+12y-10
=3y²+11y-8