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if -4 is a root of quadratic equation X ² + bx - 4 =0 and the quadratic equation x²+bx+k=0 has equal roots the value of k... |
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Answer» Step-by-step EXPLANATION: 0 = 16-4b-4 0= 12-4b 4b = 12 b = 3 x²+3x+k = 0 b²-4ac = 0 9-4k =0 9=4k k= 9/4 |
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