Posted by Geena on Wednesday, May 4, 2011 at 12:26pm.
1. 8 5/8 + 1/2*6/9,
69/8 + 6/18,
69/8 + 1/3,
LCD = 24,
207/24 + 8/24 = 215/24 = 8 23/24.
2. 9c^3 + 7c -(3c^3 - 12 + c),
9c^3 + 7c - 3c^3 + 12 - c,
6c^3 + 6c + 12,
6(c^3 + c + 2).
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