Question

45 / (7 + 2 ^ 3) = 3x ^ 2 resolver ecuacion con potencia y raiz ​

Answer 1

Respuesta:

x=1 y x= -1

Explicación paso a paso:

$\frac{45}{7 + {2}^{3} } = 3 {x}^{2} \\ \frac{45}{7 + 8} = \frac{45}{15} = 3 = 3 {x}^{2} \\ 3 = 3 {x}^{2} \\ {x}^{2} = \frac{3}{3} = 1 \\ {x}^{2} - 1 = 0 \\ (x + 1)(x - 1) = 0 \\ x = 1 \\ x = - 1$