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Quiz10A - Name Section MAC1140 Quiz 10 UFID Show all of...

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Unformatted text preview: Name : Section : : MAC1140, Quiz 10 UFID Show all of your work to receive credit. Please use a pen with blue or black ink. When you are nished, FOLD your paper in half lengthwise and write your name on the back. 1. Let f (x) = x3 - 4x2 + x + 6. (a) Factor f (x) completely, using the fact that x = -1 is a root of f (x) (hint: synthetic division). (b) State the degree of f (x), and state whether the leading coecient is positive or negative. (c) State the zeros of f (x) and their multiplicities. 2. Simplify 1+2i7 3-2i15 and write it in standard form (hint: simplify i7 and i15 rst). ...
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