Answer:
7x^2 + 3y^2 - 4x
Step-by-step explanation:
To find the difference of the given polynomials, we need to subtract the second polynomial from the first polynomial. Let's simplify the expression:
(12x^2 - 11y^2 - 13x) - (5x^2 - 14y^2 - 9x)
Let's combine like terms:
12x^2 - 11y^2 - 13x - 5x^2 + 14y^2 + 9x
Combining like terms, we get:
(12x^2 - 5x^2) + (-11y^2 + 14y^2) + (-13x + 9x)
Simplifying further:
7x^2 + 3y^2 - 4x
Therefore, the difference of the given polynomials is 7x^2 + 3y^2 - 4x.
