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24-02-2019
Mathematics

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9. Simplify (3a4 – 2a2 + 5a – 10) – (2a4 + 4a2 + 5a – 2).

A. a4 – 6a2 – 8
B. a4 + 2a2 + 10a – 12
C. a4 + 4a2 + 10a – 12
D. 5a4 + 4a3 + 3a2 + 10a – 12

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24-02-2019

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