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Exam 3 245 practice Disclaimer. The actual test does not mirror this ...

Exam 3 245 practice Disclaimer. The actual test does not mirror this ...

Exam 3 245 practice Disclaimer. The actual test does not mirror this ...

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Find the zeros of the polynomial function and state the multiplicity of each.<br />

37) 5x(x - 7) 3 (x 2 - 16) 37)<br />

Use synthetic division to decide whether the given number k is a zero of the given polynomial function.<br />

38) -5 - 4i; f(x) = x2 + 10x + 41 38)<br />

Use the remainder theorem and synthetic division to find f(k).<br />

39) k = -3; f(x) = 6x 4 + 10x 3 + 2x 2 - 6x + 35 39)<br />

Use synthetic division to decide whether the given number k is a zero of the given polynomial function.<br />

40) -2; f(x) = -6x 3 + 3x 2 + x - 58 40)<br />

Use the remainder theorem and synthetic division to find f(k).<br />

41) k = 2 + i; f(x) = x3 + 10 41)<br />

Use the factor theorem to decide whether or <strong>not</strong> the second polynomial is a factor of the first.<br />

42) 8x 3 + 36x 2 - 19x + 5; x + 5 42)<br />

Use synthetic division to decide whether the given number k is a zero of the given polynomial function.<br />

43) 7i; f(x) = x3 + 2x2 + 49x + 98 43)<br />

For the function as defined that is one-to-one, graph f and f-1 on the same axes.<br />

44) f(x) = x + 6<br />

y<br />

10<br />

44)<br />

5<br />

-10 -5 5 10<br />

x<br />

-5<br />

-10<br />

Use synthetic division to decide whether the given number k is a zero of the given polynomial function.<br />

45) 1 2 ; f(x) = 2x 4 - 21x3 + 3x + 1 45)<br />

Factor f(x) into linear factors given that k is a zero of f(x).<br />

46) f(x) = x3 - (4 + 2i)x2 + (-5 + 8i)x + 10i; k = 2i 46)<br />

5

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