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多项式(1/2)*x平方+x-1,(1/2)*x平方+3x+1,(1/2)*x平方-x,选择两个进行加法运算并把结果因式分解
人气:397 ℃ 时间:2019-08-21 04:05:44
解答
若选(1/2)*x^2+x-1,(1/2)*x^2+3x+1(1/2)*x^2+x-1+(1/2)*x^2+3x+1=x^2+4x=x(x+4)若选(1/2)*x^2+3x+1,(1/2)*x^2-x(1/2)*x^2+3x+1+(1/2)*x^2-x=x^2+2x=x(x+2)若选(1/2)*x^2+x-1,(1/2)*x^2-x(1/2)*x^2+x...
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