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(3√x - 5)(5√x - 3) = 15x
(3√x)(5√x) - (3√x)(3) - (5) (5√x) + (5)(3) = 15x
15(√x)² - 9√x - 25√x + 15 = 15x
15x - 34√x + 15 = 15x Simplificas 15x
- 24√x + 15 = 0
15 = 34√x Elevas ambos terminos de la ecuación al cuadrado
(15)² = (34√x)²
225 = 34²(√x)²
225 = 1156x
225/11566 = x
No da tu respuesta mira si algo copiaste mal
Respuesta.
x = 225/1156