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Mathematics
Problem
Given
h
(
x
)
=
x
4
−
8
x
3
+
16
x
2
h(x)=x^{4}-8x^{3}+16x^{2}
h
(
x
)
=
x
4
−
8
x
3
+
16
x
2
, the derivative
h
′
(
x
)
h'(x)
h
′
(
x
)
in completely factorised form is a)
8
x
(
x
−
2
)
(
x
−
4
)
8x(x-2)(x-4)
8
x
(
x
−
2
)
(
x
−
4
)
b)
4
x
(
x
−
2
)
(
x
−
4
)
4x(x-2)(x-4)
4
x
(
x
−
2
)
(
x
−
4
)
c)
4
x
(
x
+
2
)
(
x
+
4
)
4x(x+2)(x+4)
4
x
(
x
+
2
)
(
x
+
4
)
d)
4
(
x
−
2
)
(
x
−
4
)
4(x-2)(x-4)
4
(
x
−
2
)
(
x
−
4
)
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