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�� #1

�� 21.50. �) � = �2 - 4�, � = -(� - 4)2;�) � = �2 + 2� - 3, � = -�2 + 2� + 5;�) � = �2 - 6� + 9, � = (� + 1)(3 - �);�) � = �2 - 4� + 3, � = -�2...

�� #2(�� )

�� 21.50. �) � = �2 - 4�, � = -(� - 4)2;�) � = �2 + 2� - 3, � = -�2 + 2� + 5;�) � = �2 - 6� + 9, � = (� + 1)(3 - �);�) � = �2 - 4� + 3, � = -�2...

�� #3(�� )

�� 21.50. �) � = �2 - 4�, � = -(� - 4)2;�) � = �2 + 2� - 3, � = -�2 + 2� + 5;�) � = �2 - 6� + 9, � = (� + 1)(3 - �);�) � = �2 - 4� + 3, � = -�2...

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�� , �� 11 ��, ��:

21.50. �) � = �2 - 4�, � = -(� - 4)2;

�) � = �2 + 2� - 3, � = -�2 + 2� + 5;

�) � = �2 - 6� + 9, � = (� + 1)(3 - �);

�) � = �2 - 4� + 3, � = -�2 + 6� - 5.

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