If the polynomial x ^ 2 + 3kxy-3y ^ 2 + 6xy-8 contains no XY term, then K=_________

The polynomial x ^ 2 + 3kxy-3y ^ 2 + 6xy-8 contains no XY term
Then 3kxy + 6xy = 0 (3K + 6) xy = 0 3K + 6 = 0 K = - 2

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