If \(c \ne 1,\) is \(ab = a+b?\)

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by Vincen » Sat Dec 05, 2020 5:01 am

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If \(c \ne 1,\) is \(ab = a+b?\)

(1) \(a^2+b^2=0\)
(2) \(a=ac=b\)

Answer: D

Source: EMPOWERgmat

Source: Beat The GMAT — Data Sufficiency | Sat Dec 05, 2020 5:01 am

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