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Mathematics
Problem
For the polynomial
k
(
x
)
=
x
3
−
6
x
2
+
9
x
−
4
k(x)=x^{3}-6x^{2}+9x-4
k
(
x
)
=
x
3
−
6
x
2
+
9
x
−
4
, factorise it completely and identify the zero that occurs twice.
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