selesaikan persamaan nilai mutlak |2x+5| = |7-2x|
Matematika
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Pertanyaan
selesaikan persamaan nilai mutlak |2x+5| = |7-2x|
1 Jawaban
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1. Jawaban Anonyme
NiLai MutLak
>> Persamaan
|2x + 5| = |7 - 2x|
(2x + 5)² - (7 - 2x)² = 0
• a² - b² = (a + b)(a - b)
(12)(4x - 2) = 0
4x - 2 = 0
x = 1/2
NiLai x yg memenuhi :
x = 1/2