Pre AP Precalculus?
Pre AP Precalculus?
Pre AP Precalculus?
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52. 2 − 9 + 4 + 9<br />
53. 4 + 31 − 7<br />
54. 9 + 5 <br />
55. 2 + 52 − 5<br />
56.<br />
57.<br />
<br />
<br />
<br />
<br />
Solve by using the quadratic formula:<br />
58. 2 + 5 − 7 = 0<br />
59. + 6 − 5 = 0<br />
60. 2 + 8 = −12<br />
61. 3 = −4 − 10<br />
Evaluate the discriminant of each equation. Determine how many solutions and whether they are<br />
real or imaginary.<br />
62. + 4 + 5 = 0<br />
63. 2 + 7 − 15 = 0<br />
64. 4 + 20 + 25 = 0<br />
Write each quadratic equation in standard (vertex-intercept) form by completing the square.<br />
Then graph.<br />
65. = − 4 + 6<br />
66. = −2 + 12 − 15<br />
Write a quadratic equation for each pair of roots.<br />
67. -6 and -9
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