Mathematics

Nicolas Gilmore

7 June, 14:15

Which set of expressions are not equivalent?

4x (x) + 3 (2x) and 4x2 + 6x

5 (3x) - 4 (3x) and 3x

4 (3a) - 2 (4a) and 4a2

3 (3a) + a (3a) and 3a2 + 9a

+5

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