Jawaban:
x = 3
a. x kuadrat + px - 15 = 0
3 kuadrat + p × 3 - 15 = 0
9 + 3p - 15 = 0
3p = 15 - 9
3p = 6
p = 2
b. x kuadrat - 9x + 3p = 0
3 kuadrat - 9 × 3 + 3p = 0
9 - 27 + 3p = 0
3p = 27 - 9
3p = 18
p = 6
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Jawaban:
x = 3
a. x kuadrat + px - 15 = 0
3 kuadrat + p × 3 - 15 = 0
9 + 3p - 15 = 0
3p = 15 - 9
3p = 6
p = 2
b. x kuadrat - 9x + 3p = 0
3 kuadrat - 9 × 3 + 3p = 0
9 - 27 + 3p = 0
3p = 27 - 9
3p = 18
p = 6