. |2x – 1| = |x + 3|
Jawaban:
cmiiw sy jg msh bljr
Penjelasan dengan langkah-langkah:
| 2x – 1 | = | x + 3 |
= ( 2x – 1 )² = ( x + 3 )²
= ( 2x – 1 )² – ( x + 3 )² = 0
= ( 2x – 1 + x + 3 ) ( 2x – 1 – x – 3 ) = 0
= ( 2x + x – 1 + 3 ) ( 2x – x – 1 – 3 ) = 0
= ( 3x + 2 ) ( x + 2) = 0
= x = -2 atau x = 3/2