1) The document presents four quadratic equations: a) x^2 + 15x + b) x^2 - 10x + c) x^2 - 3x - 14 and d) x^2 + 7x - 2. 2) For each equation, the document solves for the roots/solutions and identifies the range of values for which the equation is true. 3) The roots and ranges provided are: a) x = -5, -3 b) x = 5, -2 c) x = 1, -7 d) x = -1, 2.

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