Since the leading degree of the resulting expression is 2, hence the polynomial simplifies to an expression that is a quadratic
Simplifying polynomial expressions
Polynomial expressions are expressions that has a leading degree of 3 and above.
Given the expression
(-5x² - 2x + 4) + (8x² - x - 1) - (x+2)(x-5)
Expand the polynomial
(-5x² - 2x + 4) + (8x² - x - 1) - (x² -3x - 10)
Collect the like terms
-5x² + 8x² - x² - 2x - x + 3x + 4 - 1 + 10
2x² + 13
Since the leading degree of the resulting expression is 2, hence the polynomial simplifies to an expression that is a quadratic
Learn more on polynomial here: https://brainly.com/question/2833285
#SPJ1