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If x+2 and x-1 are the factors of x^3+10...

If `x+2` and `x-1` are the factors of `x^3+10 x^2+m x+n,` then the values of `m` and `n` are respectively=? (a)`5` and `-3` (b) `17` and `-8` `7` and `-18` (d) `23` and `-19`

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