Posted by Mimi on Tuesday, May 3, 2011 at 4:01am.
Use distributive property
9 t^3 (4tē+9t-1) - 7 (4tē+9t-1)
36 t^5 + 81 t^4 - 9 t^3 - 28 t^2 - 63 t +7
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