| 3×+5 | -----------=1 | 2×-4 |
Matematika
12E47EIEIEI
Pertanyaan
| 3×+5 |
-----------=1
| 2×-4 |
-----------=1
| 2×-4 |
1 Jawaban
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1. Jawaban agungfrin23
|3x+5|=|2x-4|
(3x+5)^2=(2x-4)^2
9x^2+30x+25=4x^2-16x+16
5x^2+46x+9=0
(5x+1)(x+9)=0
x=-1/5 dan x=-9