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Equivalent expressions
medium
Which expression is equivalent to
42
x
3
+
7
x
?
A
7x(6 + 7x)
B
7
x
(
6
x
2
+
1
)
C
7
x
2
(
6
+
7
x
)
D
7
x
2
(
6
x
+
1
)
Which expression is equivalent to \(42x^{3} + 7x\)? | Math SAT Question | Ronan SAT