Answer:
The correct answer for this question is D. -3x^2+11x+14
By subtracting,(3x² + 6x + 7) - (6x² - 5x - 7) = -3x² + 11x+14
Polynomials can be subtracted using a method that involves changing the signs to the opposite sign. The process resembles adding polynomials. Depending on the specific equation, we transform the sign while subtracting polynomials to either positive or negative.
Given
(3x² + 6x + 7) - (6x² - 5x - 7)
= (3x² - 6x²) + (6x + 5x) +(7 +7)
= -3x² +11x + 14
Therefore, (3x² + 6x + 7) - (6x² - 5x - 7) = -3x² + 11x+14
To know more about subtraction of polynomials refer to :
https://brainly.com/question/4208354
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