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Equivalent expressions
medium
Which expression is equivalent to
(
4
a
2
−
9
ab
+
7
b
2
)
−
(
3
a
2
+
ab
−
2
b
2
)
?
A
a
2
−
10
ab
+
9
b
2
B
a
4
−
10
a
2
b
2
+
9
b
4
C
a
4
−
8
a
2
b
2
+
5
b
D
a
2
−
8
ab
+
5
b
2
Which expression is equivalent to \((4a^{2}-9ab+7b^{2})-(3a^{2}+ab-2b… | Math SAT Question | Ronan SAT