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Kelvin Reeves
Mathematics
1 September, 01:02
Subtract - 7x^2+1 from - 2x^2-4x
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Kelvin Williamson
1 September, 01:23
0
Answer:5x^2-4x-1
Step-by-step explanation:
-2x^2-4x - (-7x^2+1)
-2x^2-4x+7x^2-1
Collect like terms
7x^2-2x^2-4x-1
5x^2-4x-1
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