Factor completely.x4 - 16
A. (x2 + 4)(x + 2)(x - 2)
B. (x + 2)2(x - 2)2
C. Prime
D. (x2 - 4)(x + 2)(x - 2)
Answer: A
Mathematics
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Use either the binomial theorem or Pascal's Triangle to expand the binomial.(x + 2)4
A. x4 + 8x3 + 24x2 + 8x + 16 B. x4 + 8x3 + 24x2 + 32x + 16 C. x4 + 8x3 + 16x2 + 32x + 16 D. x4 + 2x3 + 24x2 + 16x + 16
Mathematics
Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.x = 4 sin t, y = 4 cos t; 0 ? t ? 2?
A. y2 - x2 = 16; -? < x < ?
B. y = x2 - 9; -2 ? x ? 2
C. x2 + y2 = 16; -4 ? x ? 4
D. y = 
= 16; -? < x < ?
Mathematics
Write as a logarithmic equation.3-3 = 
A. log3
= -3
B. log-3
= 3
C. log3-3 = 
D. log1/273 = -3
Mathematics
Evaluate.-(80) + (-13)0
A. -5 B. -2 C. 0 D. 1
Mathematics