(4m²+[(10m²-2m){10m-(8m-3m-2m), Simplify
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Answer:
(8m² + 3m - 6) - (9m - 7) + (3m² - 2m + 4)
= 8m² + 3m - 6 - 9m + 7 + 3m² - 2m + 4
= (8 + 3)m² + (3 - 9 - 2)m + (- 6 + 7 + 4)
= 11m² - 8m + 5,
which is the required simplification.
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