If (3a + 6b + c + 2d) x (3a - 6b - c + 2d) = (3a - 6b + c - 2d) x (3a + 6b - c - 2d), then which one of the following is correct ? - CDS Elementary Mathematics 2023(II)

Two dice each numbered from 1 to 6 are thrown together. Let A and B…

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If (3a + 6b + c + 2d) x (3a – 6b – c + 2d) = (3a – 6b + c – 2d) x (3a + 6b – c – 2d), then which one of the following is correct ?