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If the expression `6x^(2)+13x+k` is divisible by `2x + 3`. Then which of the following is the factor of the expression ?A. `3x+1`B. `3x+4`C. `3x+2`D. `3x+5` |
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Answer» Correct Answer - C Let `f(x)=6x^(2)+13x+k` Given `2x+3` is a factor of `f(x)` by factor theorem, `f(-(3)/(2))=0` `rArr6(-(3)/(2))^(2)+13(-(3)/(2))+k=0` `rArr(27)/(2)-(39)/(2)+k=0rArrk=6` `:.f(x)=6x^(2)+13x+6` `=(2x+3)(3x+2)` `:.` The other factor is `3x+2`. |
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