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National
Hard
Algebra
10–12
What is the coefficient of
x
4
x^4
x
4
in the expansion of
(
2
x
−
1
)
6
(2x - 1)^6
(
2
x
−
1
)
6
?
Qual é o coeficiente de
x
4
x^4
x
4
no desenvolvimento de
(
2
x
−
1
)
6
(2x - 1)^6
(
2
x
−
1
)
6
?
Answer options
A.
16
B.
-240
C.
240
D.
60
Check Answer
Solution
Step 1 of 3
1.
The term is
6
C
4
(
2
x
)
4
(
−
1
)
2
^{6}C_4 (2x)^4 (-1)^2
6
C
4
(
2
x
)
4
(
−
1
)
2
Next step
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