Multiply.(5xy2 + 9x)(5xy2 - 9x)
A. 10x2y4 - 90x2y2 - 18x2
B. 25x2y4 - 90x2y2 - 81x2
C. 10x2y4 - 18x2
D. 25x2y4 - 81x2
Answer: D
Mathematics
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Solve the problem.If f(x) = 
, g(x) = 
, and h(x) = 4x+ 16, find f(g(h(x))).
A. 
B. 4
+ 16
C. 
D. 
+ 4
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A. 
B. -4
C. 2
D. - 
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