II. Determine the formula to be used in factoring the following polynomials. On the blank provided before each item, write CMF for Common Monomial Factor, DTS for Difference of Two Squares. SDTC for Sum or Difference of Two Cubes, PST for Perfect Square Trinomial, and QT for Quadratic Trinomial in the Form x² + bx + c. 7. x² + 3x + 2
8. a² + 20a + 100
9. n³-64
10. m² - 225
11. 3x²2 + 6x4 - 9x
12. 3x² + 6x - 9x 13. m² + n⁶ 14. US⁶ - 100 15. a² - 8x - 15