X2 - 3X + 1 / X2 + 2X <_ -2 / X + 2
Matematika
ajizah9
Pertanyaan
X2 - 3X + 1 / X2 + 2X <_ -2 / X + 2
1 Jawaban
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1. Jawaban AkinariAihara
x2 - 3x + 1/ x2 + 2x < -2 / x + 2
(x2 - 3x + 1)(x + 2) < -2 (x2 + 2x)
dikali silang
(x3 + 2x2 - 3x2 - 6x + x + 2) < -2x2 - 4x
x3 - x2 - 5x + 2 < -2x2 - 4x
x3 - x2 - 5x + 2 + 2x2 + 4x < 0
x3 + x2 - x + 2 < 0
x3 + x2 - x < -2