Given 5x4 - x + 2x² - 15 - 3x3 = 0, answer the following: 1. Write the polynomial equation in STANDARD FORM. 2. What is its leading term? 3. What is its leading coefficient? 4. What is its constant term? 5. What is its degree? 6. What type of polynomial is it? 7-9. Give 3 reasons why 5x4 – x + 2x2 – 15 - 3x3 = 0 is a polynomial equation. 10. YES or NO: Is 1 a solution/ zero/ root of 5x4 - x + 2x2 - 15 - 3x3 = 0?