Question

- 7a2 + 6b – 10c from 6a2 - 5b +9c​

Answer 1

Step-by-step explanation:

6a²-5b+9c-(-7a²+6b-10c)

=6a²+7a²-5b-6b+9c+10c

=13a²-11b+19c

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Answer 2

Answer:

13a² -11b +19c

Step-by-step explanation:

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