Answer:
5x^2 +11x -13
Explanation:
A=3x^2 + 5x - 6 and B= -2x^2 - 6x + 7
A- B =3x^2 + 5x - 6 -( -2x^2 - 6x + 7)
Distribute the minus sign
A- B = 3x^2 + 5x - 6 +2x^2 + 6x - 7
Combine like terms
= 5x^2 +11x -13
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