Simplify: -(49-a^2)-9a^2
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Answered by
4
Answer:
-49-10a^2
Step-by-step explanation:
-49- a^2 -9a^2
= -49 - 10 a^2
Answered by
2
(7a^2-a^2)- 9a^2
6a^2-9a^2
=36a^2+ 81a^2
111a^2.
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