tolong di bantu ya, tugas mtk ku
Jawab:
[tex]|2x-3|\leq |x+4|\\4x^{2} -12x+9\leq x^{2} +8x+16\\3x^{2} -20x-7\leq 0\\(3x+1)(x-7)\leq 0\\-\frac{1}{3}\leq x\leq 7[/tex]
Jadi, HP = {x | [tex]-\frac{1}{3}\leq x\leq 7[/tex] } (Jawaban : A)
SEMOGA BERMANFAAT!!!
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