3^x3-10x^2-11x-3 = akar 1/729 dijawab ya kak
Matematika
Hasmawan25
Pertanyaan
3^x3-10x^2-11x-3 = akar 1/729
dijawab ya kak
dijawab ya kak
1 Jawaban
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1. Jawaban SadonoSukirno
3^x³-10x²-11x-3 = √1/729
3^x³-10x²-11x-3 = 1/27
3^x³-10x²-11x-3 = 1/3³
3^x³-10x²-11x-3 = 3^-3
x³ - 10x² - 11x - 3 = -3
x³ - 10x² - 11x = -3 + 3
x³ - 10x² - 11x = 0
x(x² - 10x - 11) = 0
x(x + 1)(x - 11) = 0
x = 0 atau x = -1 atau x = 11