使分式4/x^-4与3/(x^2+x-6)+2/(x^2+5x+6)的值相等的x等于( )A.-4 B.-3 C.1 D.10

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使分式4/x^-4与3/(x^2+x-6)+2/(x^2+5x+6)的值相等的x等于( )A.-4 B.-3 C.1 D.10
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使分式4/x^-4与3/(x^2+x-6)+2/(x^2+5x+6)的值相等的x等于( )A.-4 B.-3 C.1 D.10
使分式4/x^-4与3/(x^2+x-6)+2/(x^2+5x+6)的值相等的x等于( )
A.-4 B.-3 C.1 D.10

使分式4/x^-4与3/(x^2+x-6)+2/(x^2+5x+6)的值相等的x等于( )A.-4 B.-3 C.1 D.10
题目是不是应该是
4/(x^2-4)=3/(x^2+x-6)+2/(x^2+5x+6)
两边同时乘以(x+3)(x+2)(x-2)
4(x+3)=3(x+2)+2(x-2)
x=10
答案是D