Fill in the blank with one of the words or phrases listed below. Not all choices will be used and some choices may be used more than once.
The expression 5
and 7
are examples of 
.
A. like radicals
B. rationalizing the denominator
C. difference of two squares
D. radicand
Answer: A
Mathematics
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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.Vertices at (3, 0) and (-3, 0); foci at (8, 0) and (-8, 0)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Give all solutions of the nonlinear system of equations, including those with nonreal complex components.x2 + 3xy + y2 = 4 x2 - 3xy - y2 = 4
A. {(2, -6), (-2, 6)} B. {(2, 0), (-2, 0)} C. {(2, 0), (-2, 0), (2, -6), (-2, 6)} D. {(0, 2), (0, -2), (2, -6), (-2, 6)}
Mathematics
Simplify.(-i)19
A. -1 B. i C. -i D. 1
Mathematics
Simplify the expression. Assume all variables represent nonzero real numbers.
2
A. 
B. 16x2
C. 
D. 
Mathematics