SOLUTION: Please help!! Q)If the quadratic equations x^2+kx+6 and x^2-5x+l=0 share a common root, which among the following could be the root.
(1)2 (2)3 (3)6 (4)All of the above
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-> SOLUTION: Please help!! Q)If the quadratic equations x^2+kx+6 and x^2-5x+l=0 share a common root, which among the following could be the root.
(1)2 (2)3 (3)6 (4)All of the above
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Question 926835: Please help!! Q)If the quadratic equations x^2+kx+6 and x^2-5x+l=0 share a common root, which among the following could be the root.
(1)2 (2)3 (3)6 (4)All of the above
Please explain Answer by richard1234(7193) (Show Source):
Looking at the second quadratic, we see that x = 2, 3, and 6 are not roots of x^2 - 5x + 1 = 0 (this is easily seen by plugging in), so none of those choices could be the common root.
