Find all rational zeros of f. Then (if necessary) use the depressed equation to find all roots of the equation f(x) = 0.f(x) = x4 + 3x3 - 4x2 - 10x - 4
A. {-1, 2, -2 + 
, -2 - 
}
B. {1, -2, -2 + 
, -2 - 
}
C. {-1, -2, -2 + 
, -2 - 
}
D. {-1, 3, -2 + 
, -2 - 
}
Answer: A
Mathematics
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A. 
B. 
C. 
D. 
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Find the derivative of y.y = ln(sech (9x + 8))
A. -9 tanh (9x + 8)
B. 
C. -tanh (9x + 8)
D. tanh (9x + 8)
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Express the number in decimal notation.8.1 × 105
A. 81,000 B. 8,100,000 C. 405 D. 810,000
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The area of the polygon is given. Write a polynomial that represents the missing length. 
A. x + 3 B. x + 15x5 C. x6 + 3x5 D. 5x6 + 10x5
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