Simplify the expression.4 sin 2x cos 2x
A. 
sin 16x
B. cos 8x
C. 2 sin 4x
D. cos 4x
Answer: C
Mathematics
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Solve the equation by completing the square.8d2 + 30d + 25 = 0
A. 
B. 
C. 
D. 
Mathematics
Add or subtract as indicated.Subtract:
A. -6x5 - 13x2y - 4y2 B. 15x8y3 C. -6x5 - 13x2y + 34y2 D. -6x5 - 10x2y - 4y2
Mathematics
Use the leading coefficient test to determine whether y?? or y?-? as
y = -3x6 + 7x5 - x2 - 3x + 5
A. -? B. ?
Mathematics
Find the standard form of the polynomial function of smallest degree with real coefficients satisfying the given conditions. f(0) = 12, 1 + i and -6 are roots
A. f(x) = x3 + 4x2 - 10x + 12 B. f(x) = x3 - 6x2 - 10x - 12 C. f(x) = x3 - 4x2 + 10x + 12 D. f(x) = x3 + x2 - 10x + 12
Mathematics