��.305 �� 8 �� (��)

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�� 305. �) (2� + 3)(2� + 5) = 0; �) (3� - 7) (4 - ��) = 0; �) (5 - �)(3� + 2) = 0; �) (7 - �)(6 - 9�) = 0; �) (2� - 3)(�2 + 3� + 2) = 0; �) (�2 - 5� + 6)(3� - 2)...

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305. �) (2� + 3)(2� + 5) = 0;

�) (3� - 7) (4 - ��) = 0;

�) (5 - �)(3� + 2) = 0;

�) (7 - �)(6 - 9�) = 0;

�) (2� - 3)(�2 + 3� + 2) = 0;

�) (�2 - 5� + 6)(3� - 2) = 0;

�) (�2 + 1)(�2 + 5� + 6) = 0;

�) �(�2 - 6� + 9) = 0;

�) (�2 + 2� + 1) (�2 - 5� + 7) = 0;

�) (�2 - �� + 1)(*2 - 4� + 4) = 0;

�) (�2 - �� + 1)(�2 + 4� - 3) = 0;

�) (�2 + 5� + 1)(�2 - � + 6) = 0;

�) (�2 + 1)(�2 - 2� + 7) = 0;

�) (�2 - 3)(�2 - 4� + 4) = 0.

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