Mathematics
Mathematics, 21.10.2019 13:30, usjalal

Which shows equivalent expressions?
a2+3b-2a2=3a2+3b-4a2
a2+3b-2a2=3a2+4b-4a2
-a2+3b-2a2=3a2+3b
-a3+3b+2a2=3a2+4b-2a2

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Do you know the correct answer?
Which shows equivalent expressions?
a2+3b-2a2=3a2+3b-4a2
a2+3b-2a2=3a2+4b-4a2
-a2...

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