Question

Efetue as operações com polinômios: a) (9x+ 8 – 5x) + (2x² + 8x) + (5 – 2x) b) (-12ab) - 4a + 5b) + (2b – 10ab – 3a – 11) + (10ab² - 2b – 5a) c) (4x³ - 5x² - 2) – (7x + 6x³ + 9x²) d) (x³ - 3x² + 8x – 7) + (2x² + 10) + (4x³ + x – 14) e) (-12ab² - 4ab + 5b – 12) – (2ab² - 10ab – 3a – 11) – (10ab² - 2b – 5a)