Simplify. Write your answers in the form of a+bi, where a and b are real numbers.

A. -  -  i
B.  -  i
C. -  i
D.  -  i

Answer: A

Mathematics

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Factor the binomial completely. If it is prime, say so.147a4b - 12b3

A. 3b(7a - 2b)2 B. 3b(7a2 + 2b)(7a2 - 2b) C. 3b(7a + 2b)2 D. Prime

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Mathematics

Find all rational zeros and factor f(x).f(x) = x3 + 6x2 - 40x - 192

A. -5, -8, 12; f(x) = (x + 5)(x + 8)(x - 12) B. 4, 8, -6; f(x) = (x - 4)(x - 8)(x + 6) C. 5, 8, -12; f(x) = (x - 5)(x - 8)(x + 12) D. -4, -8, 6; f(x) = (x + 4)(x + 8)(x - 6)

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Mathematics

Perform the indicated operations and simplify the result. Leave the numerator and denominator in your answer in factored form.

A.
B. x2 + 9
C. 9
D.

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Mathematics

Factor out the GCF from the polynomial. If the GCF is 1, write prime.7x2 + 21x - 28

A. 7(x2 + 3x - 4) B. 7(x2 + 14x - 21) C. 7x(x + 3 - 4) D. 7(x2 + 21x - 28)

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Mathematics