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6x^3 - 2x + 3 - (-3x + 5x^2 + 4x - 7)....distribute the negative thru the parenthesis.

6x^3 - 2x + 3 + 3x - 5x^2 - 4x + 7.....combine like terms
6x^3 - 5x^2 - 3x + 10 <==

Answer:1 wrote as addition of the additive inverse.

2 wrote terms as addition of opposite.

3 grouped like terms.

4 combined like terms

Step-by-step explanation:

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