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Using the quadratic formula, what are the roots of x² − 2x − 3 = 0?
A2 and −3
B3 and −1
C−3 and 1
D1 and 3
Answer & Solution
Correct answer: B. 3 and −1
x = (2 ± √16)/2 = (2 ± 4)/2, which gives 3 and −1.
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