Assessment A. Fill in the frames to make the sides of each equation equivalent. 1. _________ (�� − 9) = ��2 − 81 2. (20 + 4) _________ = 202 − 42 3. _________ (7�� − 11�� ) = 49��2 − 121��2 4. (6��2�� + 3����) (6��2�� − 3����) = ____________ − 9��2��2 5. (13 + ��) (13 − ��) = ___________ − ��2 B. Factor completely 1. 144��2 − 169��2 2. 1 − 0.09��2 3. 16��2 − 121 4. −64��2 + (9/25) ��2 5. ��4 – 256
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