| 2x + 3 | = | 1 - 3x | Bagi kakak yg baik bantuin dong

(2x+3)²=(1-3x)²
4x²+12x+9=9x²-6x+1
4x²-9x²+12x+6x+9-1=0
-5x²+18x+8=0
5x²-18x-8=0
(5x+2)(x-4)
5x=-2
x=-2/5
…
x=4
HP={4,-2/5}