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f (x + k) is a factor of 2x² + 2kx + 5x + 10, find k. |
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Answer» If (x+k) is a factor then x = -\xa0kNow , 2x²+2kx+5x+10 = 0 -----------------(1)Now, substituting -\xa0k in the place of x in equation (1)⇒2(-k)²+2k(-k)+5(-k)+10 = 0⇒2k²-2k²-5k+10 = 0⇒-5k=-10⇒5k=10⇒k=10/5⇒k=2 . The value of k is 2 Cannot answer on this |
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