5.1 Review Worksheet, Part 1 (continued)
Find the roots of each equation by factoring. 45. x 2 + 8 x = − 16 46. 4 x 2 = 81
47. 9 x 2 + 12 x + 4 = 0
48. 36 x 2 − 9 = 0
49. x 2 − 10 x + 25 = 0
50. 49 x 2 = 28 x − 4
Write a quadratic function in standard form for each given set of zeros. 51. 5 and − 1 52. 6 and 2
53. 3 and 3
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