please answer ticked one guys
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Step-by-step explanation:
(12mn²-34n²-24)-(15n²-14mn²+7)
12mn²-34n²-24-15n²+14mn²-7
26mn²-49n²-31
17a-6a-3a-a
a(17-6-3-1)
a(7)
7a
6x²-2x²-2x
4x²-2x
2x(2x-1)
6m+3n²-8n²-7m
-m-5n²
-(m+5n²)
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