Final answer:
To simplify the expression 4x-8y+6x^(2)+3x-5y, combine like-terms by combining the terms with 'x' and the terms with 'y'.
Step-by-step explanation:
To simplify the expression 4x-8y+6x^(2)+3x-5y, we need to combine like-terms. Like-terms have the same variable raised to the same power. In this expression, the like-terms are the terms with the variable 'x' and the terms with the variable 'y'.
Combining the like-terms, we have (4x + 6x^(2) + 3x) - (8y + 5y). This simplifies to 13x^(2) + 7x - 13y. Therefore, the simplified expression is 13x^(2) + 7x - 13y.