Mathematics, 27.09.2020 01:01 quinteroalex2001

Which shows equivalent expressions? a squared + 3 b minus 2 a squared = 3 a squared + 3 b minus 4 a squared
a squared + 3 b minus 2 a squared = 3 a squared + 4 b minus 4 a squared
Negative a squared + 3 b minus 2 a squared = 3 a squared + 3 b
Negative a squared + 3 b + 2 a squared = 3 a squared + 4 b minus 2 a squared

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Which shows equivalent expressions? a squared + 3 b minus 2 a squared = 3 a squared + 3 b minus 4 a...