(11x^4-9x^2+3x+11)-(2x^4+6x^3+2x-9) square

To simplify the given expression, we need to subtract the terms inside the second set of parentheses from the terms inside the first set of parentheses. First, distribute the negative sign to each term inside the second set of parentheses: Next, combine like terms: Simplify the expression: Therefore, the simplified expression is: