sssophiaaa sssophiaaa 16-07-2020 Mathematics contestada Factor the polynomials, show your work. -3x^4 - 9x³ + 15x²; 3x² - 18x + 24; 2x² + 17x + 21; 3x² - 17x + 10; x² - 81; 4x² - 25b²; x² + 14x + 49; x² - 16x + 64 Thank you so much, I know its kind of a lot!