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Mathematics
Problem
If
x
=
2
x = 2
x
=
2
,
y
=
−
3
y = -3
y
=
−
3
and
z
=
−
5
z = -5
z
=
−
5
, work out the value of
2
x
y
2
2
−
2
z
\frac{2xy^2}{2-2z}
2
−
2
z
2
x
y
2
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