Example 1A: Factoring Trinomials by Guess and Check
{"Image DocumentName": "Example 1A: Factoring Trinomials by Guess and Check", "Image ImageDescription": "Factor x2 + 15x + 36 by guess and check. ( + )( + ) Write two sets of parentheses. (x + )(x + ) The first term is x2, so the variable terms have a coefficient of 1. The constant term in the trinomial is 36. \uf0fb Try factors of 36 for the constant terms in the binomials. (x + 1)(x + 36) = x2 + 37x \uf0fb (x + 2)(x + 18) = x2 + 20x \uf0fc (x + 3)(x + 12) = x2 + 15x The factors of x2 + 15x + 36 are (x + 3)(x + 12). x2 + 15x + 36 = (x + 3)(x + 12)", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}