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4 votes
(3x 3 +4x 2 )+(3x 3 −4x 2 −9x)

2 Answers

6 votes
9x is going to be your answer
User Puneet Behl
by
3.0k points
5 votes

Answer:

9x

Explanation:

=9x+8x+9x-8x-9x

=9x

User Sachin Kohli
by
2.9k points