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Find the values of k so that+is a factorof kx2 -2kx-3. Find the values of k so that |
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Answer» Let p( x ) = k² x² - 2kx - 3 If ( x + 1 ) is a factor p( x ) then Remainder p ( - 1 ) = 0 k² ( - 1 )² - 2 k ( - 1 ) - 3 = 0 k² + 2k - 3 = 0 k² - k + 3k - 3 = 0 k ( k - 1 ) + 3 ( k - 1 ) = 0 ( k - 1 ) ( k + 3 ) = 0 k - 1 = 0 or k + 3 = 0 k = 1 or k = - 3 |
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