Add the following polynomials (Write answers in descending order):1. (7j-2) + (5j-j-3)2. (8a5-4) + (3a + a-2)3. (6m5 + 1) + (2m5 + 9m -

Add the following polynomials (Write answers in descending order):1. (7j³-2) + (5j³-j-3)2. (8a5-4) + (3a² + a-2)3. (6m5 + 1) + (2m5 + 9m - 1)4. (3m5 + 1) + (9m5 +3m - 2)5. (-5x²-x+4) + (-3x² - 5x+2)6. (-4x + 4x³ + 7) + (3x³-9-3x)7. (3x² - 2x + 1) + (-x² + 3x + 1)