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Factor each polynomial by grouping. See Example 2.
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Factor each polynomial by grouping. See Example 2.
Find each sum or difference. -7/3 + 3/4
Find each product.
Simplify each expression. Assume all variables represent nonzero real numbers. (-5n4/r2)3
Multiply or divide as indicated. Write answers in lowest terms as needed. (21/8)∙(4/7)
Simplify each expression. Assume all variables represent nonzero real numbers. -(x3y2/z)0