Multiply.(x - 1)(x2 - x - 7)
A. x3 - 2x2 - 6x + 7
B. x3 - 2x2 - 8x - 7
C. x3 - 2x2 - 7x + 7
D. x3 - 6x + 7
Answer: A
Mathematics
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Find the real solutions of the equation.
+ 
= 3
A. {4}
B. {1}
C. {
}
D. no real solution
Mathematics
For the given functions f and g, find the requested composite function value.f(x) = 
, g(x) = 3x;
Find (f ? g)(3).
A. 3
B. 3
C. 
D. 
Mathematics
Solve.
x - 
x = 3
A. x = -24 B. x = -21 C. x = 24 D. x = 21
Mathematics
Find an equation for the indicated ellipse.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Mathematics