Multiply.(9 + m)(9 - m)
A. 81 - m2
B. 81 - 18m - m2
C. 18 - m2
D. 81 + 18m - m2
Answer: A
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and 
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Fill in the blank(s) with the appropriate word(s).
An equation that defines y as a function of x is given. Solve for y in terms of x, and replace y with the function notation f(x).9x2 + 7y = 6
A. f(x) = 6 - 9x2
B. f(x) = 
C. f(x) = 
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