Multiply using one of the rules for the square of a binomial. Assume any variable exponents represent whole numbers.(3x - 7y)2
A. 9x2 + 49y2
B. 3x2 + 49y2
C. 3x2 - 42xy + 49y2
D. 9x2 - 42xy + 49y2
Answer: D
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A. No B. Yes
Find the complex solutions of the given equation.2r2 + 5r + 5 = 0
A. 
B. 
C. 
D. 
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Fill in the blank(s) with the appropriate word(s).
Solve the problem.What is the domain of the sine function?
A. all real numbers, except odd multiples of 
(90°)
B. all real numbers from -1 to 1, inclusive
C. all real numbers
D. all real numbers, except integral multiples of ? (180°)