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Please help these are not easy for me

Please help these are not easy for me
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2 votes
Please help these are not easy for me

Please help these are not easy for me-example-1
User Behnaz
by
7.8k points

1 Answer

1 vote

Answer:

12a^2 - 9a + 5

Explanation:

(5a^2 - 6a - 4) - (-7a^2 + 3a - 9)

5a^2 + 7a^2 = 12a^2

-6a - 3a = -9a

-4 + 9 = 5

12a^2 - 9a + 5

User Vickey
by
8.3k points
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