Factor.x2 + 2xy - 8y2
A. (x + 4y)(x - 2y)
B. (x - y)(x + 2y)
C. (x - 4y)(x + 2y)
D. (x - 4y)(x + y)
Answer: A
Mathematics
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Given the polynomial function f(x), find the rational zeros, then the other zeros (that is, solve the equation 
), and factor f(x) into linear factors.f(x) = x3 - 27x - 54
A. -3, multiplicity 2; -6; f(x) = 
(x + 6)
B. -3, multiplicity 2; 6; f(x) = 
(x - 6)
C. -6, -3, 3; f(x) = (x + 6)(x + 3)(x - 3)
D. -3, 3, 6; f(x) = (x + 3)(x - 3)(x - 6)
Mathematics
Perform the exponentiation.(-1)11
A. -11 B. -1 C. 11 D. 1
Mathematics
For the right triangle with sides of lengths 5 in, 12 in, and 13 in, find the length of the radius of the inscribed circle.
A. 2 inches B. 2.5 inches C. 3 inches D. 3.5 inches
Mathematics
Find the reference angle for the given angle.
A. 
B. 
C. 
D. 
Mathematics