Answers edited by Elliott G.
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How do you simplify
40
k
4
4
k
−
44
k
3
4
k
−
60
k
2
4
k
−
4
k
4
k
−
21
4
k
?
How do you factor
−
6
x
2
−
(
−
6
x
3
)
?
How do you simplify
x
5
x
2
y
−
2
?
Value of (n!)^2 . ???