Question

(X+3)^2-5x=x^2+15

Por fa ayúdenme

Answer 1

¡Hola!

$(x + 3)^{2} - 5x = {x}^{2} + 15 \\ \\ (x)^{2} + (3)^{2} - 5x = {x}^{2} + 15 \\ \\ {x}^{2} + 9 - 5x = {x}^{2} + 15 \\ \\ {x}^{2} - {x}^{2} - 5x = 15 - 9 \\ \\ - 1(- 5x) = - 1(6) \\ \\ 5x = - 6 \\ \\ x = - \frac{ 6}{5}$

Espero que sirva y saludos.