Factor by grouping.xy + y + 8x + 8
A. (x + 1)(y + 8)
B. (x + 1)(8y + 8)
C. (8x + 8)(y + 1)
D. (x + 8)(y + 1)
Answer: A
Mathematics
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Give an appropriate answer.Let
f(x) = -1 and
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[f(x) - g(x)].
A. -6 B. 4 C. -1 D. -3
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The curve x = 5- 10cos²t, y = tant(1 - 2cos²t) cross itself at some point  FIGURE 1.png)
. Find the equations of both tangent lines at that point.
 multiple choice.png)
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Simplify by rationalizing the denominator.
A. 
B. 
C. 
D. 
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Evaluate the expression.(-16)1/2
A. not a real number B. 4 C. -8 D. -4
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