Factoring trinomials

Example 1: Factor x² + 8x + 12

Example 2: Factor x² – 10x + 24

Example 3: Factor x² + 7x – 30

Example 4: Factor x² + 7x + 16

Example 5: Factor n² – n – 72

Example 6: Factor t² + 2t – 168

Example 7: Factor 2x² + 11x + 5

Example 8: Factor 10x² – 17x + 3

Example 9: Factor 4x² + 6x + 9

Example 10: Factor 6x² – 11x – 10

Example 11: Factor 4x² – 29x + 30