s1oppyj0e s1oppyj0e 09-03-2021 Mathematics contestada AWNSER THIS FOR 20 POINTS! Simplify each polynomial by adding or subtracting. There should be no like terms in your final expression.a. (8x² + 2x - 5) + (-5x² + x + 3) = ?b. (2x² - 3x + 1) - (x³ + 2x² - 4) = ?