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| 1. |
IF -2 is a root of the equation 3x^2 - 5x +2k =0, find the value of k |
| Answer» We have the following equation,\xa0{tex}3x^2-5x+2k=0{/tex}Putting x = -23(-2)2\xa0- 5(-2) + 2k = 0{tex}\\Rightarrow{/tex}\xa012 + 10 + 2k = 0{tex}\\Rightarrow{/tex}\xa022 + 2k = 0{tex}\\Rightarrow{/tex}\xa0k =\xa0{tex}\\frac{-22}{2}{/tex}\xa0{tex}\\Rightarrow{/tex}\xa0k = -11 | |