X^2+2x-3/6-3x-3x^2 ≤ 2
Matematika
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Pertanyaan
X^2+2x-3/6-3x-3x^2 ≤ 2
1 Jawaban
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1. Jawaban SadonoSukirno
(x²+2x-3)/(6-3x-3x²) ≤ 2
(x²+2x-3)/(6-3x-3x²) - 2 ≤ 0
{(x²+2x-3)/(6-3x-3x²)} - {2(6-3x-3x²)/(6-3x-3x²) ≤0
{(x²+2x-3)-2(6-3x-3x²)} / (6-3x-3x²) ≤ 0
{x²+2x-3-12+6x+6x²} / (2+x)(3-3x) ≤ 0
(7x²+8x-15) / (2+x)(3-3x) ≤ 0
(7x+15)(x-1) / (2+x)(3-3x) ≤ 0
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````` -15/7 ```` -2 ``````` 1
x ≤ -15/7 atau -2 < x < 1