. If the roots of x^2 + 4x + k=0 are real, then the value(s) of k is (are)
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Answer:
k > 4
Step-by-step explanation:
if the roots of x²+4x+k are real then,
b²-4ac > 0
(4)²-4(1)(k) > 0
16-4k > 0
-4k > -16
k > 16/4
k > 4
hope this helps you
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