The difference of the expression is -x^2 + 12x + 3
How to calculate the difference of polynomials
Given the polynomial expressions
5x^2 +9x+3 -(6x2-3x)
Expand the expression to have:
5x^2 + 9x + 3 - 6x^2 + 3x
5x^2 - 6x^2 + 12x + 3
-x^2 + 12x + 3
Hence the difference of the expression is -x^2 + 12x + 3
Learn more on polynomial difference here: https://brainly.com/question/24137449
