Subtract -7a^2 + 3a -9 from 5a^2 - 6a -4 Answer should be polynomial in standard form

1 answer:

lara [203]3 years ago

6 0

5a^2 - 6a -4 - (<span>-7a^2 + 3a -9)
=</span>5a^2 - 6a -4 + 7a^2 - 3a + 9
=12a^2 - 9a + 5

answer
12a^2 - 9a + 5

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