(3X^2+2X-7) - (2X^2-6X-7) Help with this Monomial & Polynomials question?

Question

Hi, could anyone help me with the monomial & polynomial question? (3X^2+2X-7) - (2X^2-6X-7)

Answer 1

   3x²   +   2x     -7

 -2x²    +  6x    +7                    [note: distribute the (-1)]

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   x²     +  8x

 

Just remember to combine like terms.