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Cash Drake
Mathematics
13 February, 18:16
Find the square of 2m^2 - 2/3n^2
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Amaya Russell
13 February, 18:24
0
4m^4 - 8/3m^2 n^2 + 4/9n^4
Step-by-step explanation:
(2m^2 - 2/3n^2) (2m^2 - 2/3n^2)
= 2m^2 (2m^2 - 2/3n^2) - 2/3n^2 (2m^2 - 2/3n^2)
= 4m^4 - 4/3m^2 n^2 - 4/3m^2n^2 + 4/9n^4
= 4m^4 - 8/3m^2 n^2 + 4/9n^4
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