bantuin dong nomor 28,29,30
Matematika
ira507
Pertanyaan
bantuin dong nomor 28,29,30
1 Jawaban
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1. Jawaban NInja1cak
nomor 29
x1 = 1/x2
x1 . x2 . x3 = -d/a
1/x2 . x2 . x3 = -d/a
x3 = -(-6)/3
= 2
masukkan x = 2
3 . 2^3 + 4k + 26 - 6 = 0
4k = - 44
k = -11
jumlah ketiga akar dapat dirumuskan
x1 + x2 + x3 = -b/a
= -(-11)/3
= 11/3