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Mathematics
Problem
Which of the following expressions equals
d
d
x
[
x
3
(
2
x
−
1
)
4
]
\dfrac{d}{dx}\bigl[x^{3}(2x-1)^{4}\bigr]
d
x
d
[
x
3
(
2
x
−
1
)
4
]
? a)
x
2
(
2
x
−
1
)
3
(
6
x
−
3
)
x^{2}(2x-1)^{3}(6x-3)
x
2
(
2
x
−
1
)
3
(
6
x
−
3
)
b)
x
2
(
2
x
−
1
)
3
(
14
x
−
3
)
x^{2}(2x-1)^{3}(14x-3)
x
2
(
2
x
−
1
)
3
(
14
x
−
3
)
c)
3
x
2
(
2
x
−
1
)
4
+
4
x
3
(
2
x
−
1
)
3
3x^{2}(2x-1)^{4}+4x^{3}(2x-1)^{3}
3
x
2
(
2
x
−
1
)
4
+
4
x
3
(
2
x
−
1
)
3
d)
3
x
2
(
2
x
−
1
)
4
+
8
x
3
(
2
x
−
1
)
4
3x^{2}(2x-1)^{4}+8x^{3}(2x-1)^{4}
3
x
2
(
2
x
−
1
)
4
+
8
x
3
(
2
x
−
1
)
4
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