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数学
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x^3+2x^2-5x+6因式分解怎么做
人气:448 ℃ 时间:2019-10-11 03:47:02
解答
应该是:x³+2x²-5x-6 要不然真的不能分我就按我的想法做了,你参考参考吧……x³+2x²-5x-6=(x³+x²)+(x²-5x-6)=x²(x+1)+(x-6)(x+1)=(x²+x-6)(x+1)=(x-2)(x+3)(x+1)...
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