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A-
A
A+
Simplify:
a
2
b
2
(3a
2
+ ab + 6ab + 2b
2
)
= a
2
b
2
(3a
2
+ 7ab + 2b
2
)
= 3a
4
b
2
+ 7a
3
b
3
+ 2a
2
b
4
22
