Is this correct??adi_800 wrote:If 6xy = x2y + 9y, what is the value of xy?
(1) x = -2
(2) x < 0
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what is xy ?
Source: Beat The GMAT — Data Sufficiency |
D IMO
y * (x-3)^2 = 0
So either y = 0 (or/and) x = 3.
Statement 1:
x = -2, then y should be 0. Hence xy = 0
Statement 2:
x<0, again y should be 0. xy = 0
y * (x-3)^2 = 0
So either y = 0 (or/and) x = 3.
Statement 1:
x = -2, then y should be 0. Hence xy = 0
Statement 2:
x<0, again y should be 0. xy = 0
Updated !!GmatKiss wrote:Is this correct??adi_800 wrote:If 6xy = x2y + 9y, what is the value of xy?
(1) x = -2
(2) x < 0
