7^(x^3 - 3x^2 - 10x-2) =1/49
Matematika
meisyadheva
Pertanyaan
7^(x^3 - 3x^2 - 10x-2) =1/49
1 Jawaban
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1. Jawaban dharmawan12
7^(x^3 -3x^2 - 10x -2 ) = (7)^-2
x^3 -3x^2 - 10x -2 = -2
x^3 -3x^2 -10x -2 +2 = 0
x^3 -3x^2 -10x = 0
x (x + 2)(x - 5) = 0
x = 0, x = -2, x = 5
HP= { -2, 0, 5 }