Solve the equation by factoring.x(x - 9) + 20 = 0

A. {-4, -5}
B. {4, 5}
C. {-4, 5}
D. {4, -5}


Answer: B

Mathematics

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Rewrite the expressions with rational exponents as radical expressions, and then solve the equation.(3x + 1)1/2 = 3 + (x - 4)1/2

A. {-5, -8} B. ? C. {-1} D. {5, 8}

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Evaluate to four decimal places using a calculator.2

A. 7.3891 B. 54.5981 C. 2980.9580 D. 0.0003

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Find the difference. Simplify the result. -  

A.
B.
C.
D.

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List the potential rational zeros of the polynomial function. Do not find the zeros.f(x) = 2x5 - 5x2 + 6x - 1

A. ± 1, ± 2, ± 
B. ± 1, ± 
C. ± 2, ± 
D. ± 1, ± 2

Mathematics