(3x - 1)(x + 5) > 3 (x + 2)(x - 1)?
(3x - 1)(x + 5) > 3 (x + 2)(x - 1).
(3x - 1)(x + 5) > 3 (x + 2)(x - 1).
En resumen
(3x - 1)(x + 5)>3(x + 2)(x - 1) 3x ^ 2 + 15x - x - 5>3(x ^ 2 - x + 2x - 2) 3x ^ 2 - 14x - 5>3x ^ 2 + 3x - 6. / - 3x ^ 2 - 14x - 5>3x - 6. / + 14x - 5>17x - 6. / + 6 1>17x. / ÷17 1 / 17>x.
(3x - 1)(x + 5)>3(x + 2)(x - 1)
3x ^ 2 + 15x - x - 5>3(x ^ 2 - x + 2x - 2)
3x ^ 2 - 14x - 5>3x ^ 2 + 3x - 6.
/ - 3x ^ 2 - 14x - 5>3x - 6.
/ + 14x - 5>17x - 6.
/ + 6
1>17x.
/ ÷17
1 / 17>x.