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y=-10x²+110x+2100怎么化简
人气:434 ℃ 时间:2020-05-23 05:05:51
解答
y=-10x²+110x+2100
= -10(x²-11x-210)
= -10(x-21)(x+10)y=-10x²+110x+210怎么化简因式分解。最后= -10(x-21)(x+10)
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