Find the following quadratic equations for which roots are real and equal :-2x^2+kx+3=0
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Answer:
k = ±2√6
Step-by-step explanation:
2x^2 + kx + 3 = 0
has an equal roots only when
D = 0
=> b^2 - 4ac = 0
=> k^2 - 4 * 2 * 3 = 0
=> k^2 = 24
=> k = ±√24 = ±2√6
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