Which expression is equivalent to

5x²+ 3x— 2x² + 4x?

10x³

3x² + 7x

7x² + 7x

3x² — x

3 answers

-2x² + 7x

Which expression is equivalent to
— 3 ( 2x+5) + 7?

—5x —8

— 6x + 12

—2x + 12

—6x—8

-6x + 2

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