x² + 3px + p - 2 = 0
( - 5 )² + 3 ( - 5 ) p + p - 2 = 0
25 - 15p + p - 2 = 0
- 14p + 23 = 0
- 14p = - 23
p = 23 / 14
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x² + 3px + p - 2 = 0
( - 5 )² + 3 ( - 5 ) p + p - 2 = 0
25 - 15p + p - 2 = 0
- 14p + 23 = 0
- 14p = - 23
p = 23 / 14
tolong dijawab dengan cara