Factor f(x) into linear factors given that k is a zero of f(x).f(x) = x3 - 48x - 128; k = -4 (multiplicity 2)
A. f(x) = (x + 8)(x + 4)(x - 4)
B. f(x) = 
(x - 8)
C. f(x) = 
(x + 8)
D. f(x) = 
(x - 8)
Answer: D
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?
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Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.x = 7 sin t, y = 7 cos t; 0 ? t ? 2?
A. y = 
= 49; -? < x < ?
B. y2 - x2 = 49; -? < x < ?
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D. x2 + y2 = 49; -7 ? x ? 7
Simplify.
A. x4
B. x8
C. x4
D. x8