Multiply.(x - 8y)(x - 2y)
A. x2 - 10xy - 10y2
B. x2 - 13xy + 16y2
C. x2 - 10xy + 16y2
D. x - 10xy + 16y
Answer: C
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Find the x- and y-intercepts of the graph of the equation. x = y2 + 3y + 2
A. x-intercept: 2; y-intercepts: -1, -2 B. x-intercepts: 1, 2; y-intercept: -2 C. x-intercept: -2; y-intercepts: 1, 2 D. x-intercepts: -1, -2; y-intercept: 2
Use Descartes' rule of signs to find the number of possible positive, negative, and nonreal roots for the following equation.
?
?
A. 0 positive; 0 negative; 15 nonreal B. 1 positive; 0 negative; 14 nonreal C. 0 positive; 1, 3, or 5 negative; 10, 12 or 14 nonreal D. 0 or 2 positive; 1 or 3 negative; 10, 12 or 14 nonreal E. none of these
Sketch the graph using a graphing utility.3x2 - 4xy + 3y2 - 2x + 5y = 10
A. 
B. 
C. 
D. 
For the polynomial function, find the requested value.f(x) = 4x5 - 6x4 - 2x3 - x2; f(2)
A. 41 B. 7 C. 8 D. 12