9.

Page 102 Graph the equation V = 3x5 - 12x2 - 15x. 12a. BI USX X x A- A - SourcePage 102 15. In Exercises 15-58, find all real solutions of each equation. For Exercises 31- 36, give two forms for each answer: an exact answer (involving a radical) and a calculator approximation rounded to two decimal places. 3x2 - 48x = 0 BI US X X IX A- A- SourcePage 102 (x + 4) + 16 = 0 33. BI US XX IX A- A- Source Page 102 t-2 - 7t-1 + 12 = 0 45. B I U SXZ X IX A- A- SourcePage 102 9x4/3 - 10x2/3 + 1 = 0 57. E BI US XX IX A- A- SourcePage 102 In Exercises 5176, determine all o fthe realnumber solutions fo r I53. each equation. (Remember to check your answers to eliminate any extraneous solutions.) +5=x Page 102 v'Ex 10 = x 56. \fPage 101 9. Solve each equation by using the alternative technique that is discussed following Example 1 in the text. 2x - 1 = 1 - (1/2)x BIUS X X X A- A- Source