nilai mutlak dari |5-2×|=1
Matematika
askiaamalia09
Pertanyaan
nilai mutlak dari |5-2×|=1
2 Jawaban
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1. Jawaban indriRahman29
|5-2x|=1
(√(5-2x)²)²=(1)²
(5-2x)²=(1)²
(5-2x)²-(1)²=0
(5-2x-1)(5-2x+1)=0
(4-2x)(6-2x)=0
*4-2x=0
-2x=-4
2x=4
x=4/2
x=2
*6-2x=0
-2x=-6
2x=6
x=6/2
x=3
hp={2,3} -
2. Jawaban Anonyme
Bab Nilai Mutlak
Matematika SMA Kelas X
|5 - 2x| = 1
(5 - 2x)² = 1²
(5 - 2x)² - 1² = 0
(5 - 2x + 1) (5 - 2x - 1) = 0
(6 - 2x) (4 - 2x) = 0
6 - 2x = 0 atau 4 - 2x = 0
6 = 2x 4 = 2x
x = 6/2 x = 4/2
x = 3 x = 2
HP = { 2, 3 }