Use the zero-product property to find all complex solutions of the equation.x3 + 8x2 - 5x - 40 = 0
A. {-8, ±
}
B. {-
, ±5}
C. {-
, ±
}
D. {-8, ±5}
Answer: A
Mathematics
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Solve the equation on the interval [0, 2?).sin 2x + sin x = 0
A. 
, 
, 
, 
B. 0, 
, ?, 
C. 
, 
D. no solution
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Solve the equation in the interval [0, 2?). Express solutions as approximations to the nearest hundredth.3 cos2x - 2 cos x - 2 = 0
A. {2.15, 4.13} B. {0.99, 5.29} C. {4.13, 5.29} D. {0.99, 2.15}
Mathematics