6 9y ^ 2 - 4x ^ 2 + 4x - l; 7 3x ^ 2 - 6xy + 3 - Dicamon

Question

6 > 9y ^ 2 - 4x ^ 2 + 4x - l; 7 > 3x ^ 2 - 6xy + 3y ^ 2 - 27z ^ 2; x ^ 2 - y ^ 2 + 2x - 2y; 9 rangle x^ 2 -9y^ 2 +3x-9y; 10 > x ^ 3 + y ^ 3 - 7x ^ 2 + 7xy - 7y

Answer

. 9u ^ 2 - 9x ^ 2 + 9k - 1; 3x ^ 2 - 6xu + 3u ^ 2 - 27z ^ 2; =m(3y^ 6 )-(9x^ 2 -9x+1); 3(x^ 2 -2lu+1)-(3 sqrt 3 /; - (4y) ^ 2 - (2x - 1) ^ 2; 3 * (x - 4) ^ 2 - (3sqrt(3) * z);

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