Nilai x yg memenuhi pertidaksamaan 14+5|5x+2|<|5x+2|²​

14 + 5 |5x + 2| < |5x + 2|²

= 14 + 5 (5x + 2) < (5x +2)²

= 14 + 25x +10 < (5x + 2)(5x + 2)

=24 + 5x < 25x² + 10x + 10x + 4

=24 + 5x < 25x² + 20x + 4

=(-25x²) + 5x – 20x < 4 -24

=(-25x²) -15x < -20

maaf jika salah