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Equivalent expressions
easy
Which expression is equivalent to
(
9
t
4
−
2
t
2
+
9
t
−
5
)
−
(
4
t
4
−
6
t
2
+
5
t
−
5
)
?
A
5
t
4
+
4
t
3
−
7
t
2
+
9
t
−
10
B
5
t
4
+
4
t
2
+
4
t
C
5
t
4
+
2
t
2
+
14
t
−
10
D
5
t
4
+
2
t
3
−
4
t
Which expression is equivalent to \((9t^4 - 2t^2 + 9t - 5) - (4t^4 - … | Math SAT Question | Ronan SAT