Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Which change of variable would most directly simplify evaluating the integral
∫
6
x
(
3
x
2
+
4
)
4
d
x
\displaystyle\int 6x\,(3x^{2}+4)^{4}\,dx
∫
6
x
(
3
x
2
+
4
)
4
d
x
? a)
u
=
6
x
u = 6x
u
=
6
x
b)
u
=
(
3
x
2
+
4
)
4
u = (3x^{2}+4)^{4}
u
=
(
3
x
2
+
4
)
4
c)
u
=
3
x
2
+
4
u = 3x^{2}+4
u
=
3
x
2
+
4
d)
u
=
x
2
+
4
u = x^{2}+4
u
=
x
2
+
4
Browse the problem library