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Mathematics
Mathematics
Problem
For the expression
x
2
+
8
x
x^{2}+8x
x
2
+
8
x
, which constant term must be added (and subtracted) so that it becomes a perfect square trinomial in
x
x
x
? a)
64
64
64
b)
16
16
16
c)
8
8
8
d)
4
4
4
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