alleryIf x² = 49 and x < 0, x =
A7
B−7
C−49
D0
Answer & Solution
Correct answer: B. −7
1. x² = 49 → x = ±7. 2. x < 0 → x = −7.
_Source: 501-GMAT-Questions Section 4 / Manhattan Quant Bank_
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