Question

cuanto es 24n2-38n+15=0

Answer 1

Respuesta:

$24n2 - 38n + 15 = 0 \\ 48n - 38n = - 15 \\ 10n = - 15 \\ n = - \frac{15}{10} \\ comprobamos \\ \\ 24 \times ( - \frac{15}{10} ) \times 2 - 38 \times ( - \frac{15}{10}) + 15 = 0 \\ \\ - \frac{360}{10} \times 2 - ( - \frac{570}{10} ) + 15 = 0 \\ \\ - 36 \times 2 + 57 + 15 = 0 \\ - 72 + 72 = 0 \\ 0 = 0$