MatemáticasBásico1 respuestas

X² + 18x + 81 = 0¿cuánto vale equis?

X² + 18x + 81 = 0 ¿cuánto vale equis?

En resumen

X² + 18x + 81 = 0 ¿cuánto vale x? <img src="https://tex.z-dn.net/?f=%5Cmathrm%7BPara%5C%3Auna%5C%3Aecuacion%5C%3Ade%5C%3Asegundo%5C%3Agrado%5C%3Ade%5C%3Ala%5C%3Aforma%5C%3A%7Dax%5E2%2Bbx%2Bc%3D0%5Cmathrm%7B%5C%3Alas%5C%3Asoluciones%5C%3Ason%5C%3A%7D" /><img src="https://tex.

Mejor respuesta

Jhonatazv
5

X² + 18x + 81 = 0 ¿cuánto vale x?

<img src="https://tex.z-dn.net/?f=%5Cmathrm%7BPara%5C%3Auna%5C%3Aecuacion%5C%3Ade%5C%3Asegundo%5C%3Agrado%5C%3Ade%5C%3Ala%5C%3Aforma%5C%3A%7Dax%5E2%2Bbx%2Bc%3D0%5Cmathrm%7B%5C%3Alas%5C%3Asoluciones%5C%3Ason%5C%3A%7D" /><img src="https://tex.z-dn.net/?f=x_%7B1%2C%5C%3A2%7D%3D%5Cfrac%7B-b%5Cpm%20%5Csqrt%7Bb%5E2-4ac%7D%7D%7B2a%7D" /><img src="https://tex.z-dn.net/?f=%5Cmathrm%7BPara%5C%3A%7D%5Cquad%20a%3D1%2C%5C%3Ab%3D18%2C%5C%3Ac%3D81%3A%5Cquad%20x_%7B1%2C%5C%3A2%7D%3D%5Cfrac%7B-18%5Cpm%20%5Csqrt%7B18%5E2-4%5Ccdot%20%5C%3A1%5Ccdot%20%5C%3A81%7D%7D%7B2%5Ccdot%20%5C%3A1%7D" /><img src="https://tex.z-dn.net/?f=x_%7B1%2C%5C%3A2%7D%3D%5Cfrac%7B-18%5Cpm%20%5Csqrt%7B0%7D%7D%7B2%5Ccdot%20%5C%3A1%7D%3D%5Cfrac%7B-18%7D%7B2%5Ccdot%20%5C%3A1%7D%3D-9" /><img src="https://tex.z-dn.net/?f=%5Cmathrm%7BLa%5C%3Asolucion%5C%3Afinal%5C%3Aa%5C%3Ala%5C%3Aecuacion%5C%3Ade%5C%3Asegundo%5C%3Agrado%5C%3Aes%3A%7D" /><img src="https://tex.z-dn.net/?f=x%3D-9" />.