MatemáticasBásico1 respuestas

Resolvero por solucion cuadratica 18 = 6x + x(x - 13)?

Resolvero por solucion cuadratica 18 = 6x + x(x - 13).

Calculadora interactiva

ax² + bx + c = 0

En resumen

<img src="https://tex.z-dn.net/?f=18%3D6x%2Bx%28x%2B3%29%3B%5C%20%5C%20%5C%20%5C%20%5C%2018%3D6x%2Bx%5E2%2B3x%3B%5C%20%5C%20%5C%20%5C%20%5C%20%5C%2018%3Dx%5E2%2B9x" /> <img src="https://tex.z-dn.net/?f=0%3Dx%5E2%2B9x-18" /> Usando : <img src="https://tex.z-dn.net/?

Mejor respuesta

Yimiyimon
7

<img src="https://tex.z-dn.net/?f=18%3D6x%2Bx%28x%2B3%29%3B%5C%20%5C%20%5C%20%5C%20%5C%2018%3D6x%2Bx%5E2%2B3x%3B%5C%20%5C%20%5C%20%5C%20%5C%20%5C%2018%3Dx%5E2%2B9x" />

<img src="https://tex.z-dn.net/?f=0%3Dx%5E2%2B9x-18" />

Usando : <img src="https://tex.z-dn.net/?f=%5Cfrac%7B-b%2B-%5Csqrt%7Bb%5E2-4.a.c%7D%7D%7B2a%7D" />

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B-9%2B-%5Csqrt%7B%289%29%5E2-4%281%29%28-18%29%7D%7D%7B2%281%29%7D%3D%5Cfrac%7B-9%2B-%5Csqrt%7B153%7D%7D%7B2%7D" />

<img src="https://tex.z-dn.net/?f=x_%7B1%7D%3D%5Cfrac%7B-9%2B%5Csqrt%7B153%7D%7D%7B2%7D%5C%20%5C%20%5C%20%5C%20%5C%20y%20%5C%20%5C%20%5C%20%5C%20x_%7B2%7D%3D%5Cfrac%7B-9-%5Csqrt%7B153%7D%7D%7B2%7D%20" />

Exito.