The equation $x^{2}$ +2x-35=(x-m) (x+n) is true for all values of

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答案：D

4
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这里方程应该是（X-5)(X+7）。但是没有说m和n一定为正或者负，个人认为应该有两组可能解： 1. m=5,n=-7, 此时A>B 2. M=-7,N=-5, (X-M)(X+N）也可成立，此时B>A 所以我选了D，为什么选B呢

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