x = 2 or 1
x = 3 or -1
x = 1 or 0
x = 1 or 2
Correct answer is B
x2 − 2x − 3 = 0 −3x + x = − 2x − 3x × x = − 3x2 (x2 − 3x)(x − 3) = 0 (x − 3)(x + 1) = 0 Either (x − 3) = 0 or (x + 1) = 0 x = 3 or − 1
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