7x^8y^3+9x63^2

To simplify the expression 7x^8y^3 + 9x^6y^2, you can combine the like terms by adding the coefficients of x and y.

First, let's simplify the terms with x. We have 7x^8 and 9x^6. Since the variable part (x) is the same in both terms, we can add the coefficients (7 and 9) and keep the variable part unchanged. Therefore, the simplified expression becomes 16x^8y^3 + 9y^2.

Next, let's simplify the terms with y. We have 16x^8y^3 and 9y^2. Here, the variable part (y) is the same in both terms, so we can add the coefficients (16 and 9) and keep the variable part unchanged. Thus, the final simplified expression is 16x^8y^3 + 9y^2.