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If a is an integer and m1 , m2 , m3 are the slopes of all three straight lines represented by equation y3 + (2a + 5) xy2 - 6x2y- 2ax3 = 0 which are also integers, then which of the following can holds good?

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Correct option (A)(B)(C) 


for (D)

a + 2a = 32 not possible

Hence (D) is incorrect.

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