1.

`x^(2)+3Qx-2Q` का गुणज `(x-2)` है तो `Q` का मान क्‍या है?A. 2B. -2C. 1D. -1

Answer» Correct Answer - D
`(x-2)` is a factor of `x^(2)+3Qx-2Q` for `(x-2)=0`
`x^(2)+3Qx-2Q=0`
`implies 4+3xxQxx2-2xxQ=0`
`implies 4+6Q-2Q=0`
`4Q=-4`
`Q=-1`


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