MatemáticasBásico1 respuestas

Ayuda?

Ayuda. Me urge Ecuaciones de segundo grado Con una incognita 3x² - 5x + 2 = 0 4x² - 3x - 22 = 0 x² = 11x - 24 12x - 49x² = 0.

En resumen

1) 3x² - 5x + 2 = 0 a = 3 b = - 5 c = 2 <img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B%20-%28-5%29%2B%5Csqrt%7B%28-5%5E2%29%7D-4%2A3%2A2%7D%7B2%2A3%7D%3D1%20%20%20%0A%20" /> <img src="https://tex.z-dn.net/?

Mejor respuesta

Darimicaela
1

1) 3x² - 5x + 2 = 0 a = 3 b = - 5 c = 2 <img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B%20-%28-5%29%2B%5Csqrt%7B%28-5%5E2%29%7D-4%2A3%2A2%7D%7B2%2A3%7D%3D1%20%20%20%0A%20" />

<img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B%20-%28-5%29%2B%5Csqrt%7B%28-5%5E2%29%7D-4%2A3%2A2%7D%7B2%2A3%7D%3D%20%5Cfrac%7B2%7D%7B3%7D%20%20%20%20" />

2) 4x² - 3x - 22 = 0 a = 4 b = - 3 c = - 22

<img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B-%28-3%2B%29%5E2-4%2A4%28-22%29%7D%7B2%2A4%7D%3D%20%5Cfrac%7B11%7D%7B4%7D%20%20" />

<img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B-%28-3%2B%29%5E2-4%2A4%28-22%29%7D%7B2%2A4%7D%3D%20-2" />

3) x² = 11x - 24 a = 1 b = - 11 c = 24

<img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B-%28-11%29%2B%20%5Csqrt%20%28-11%29%5E2-4%2A1%2A24%7D%7B2%2A1%7D%3D%208" />

<img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B-%28-11%29-%20%5Csqrt%20%28-11%29%5E2-4%2A1%2A24%7D%7B2%2A1%7D%3D%203" />

4) 12x - 49x² = 0 a = - 49 b = 12 c = 0

<img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B-12%2B%20%5Csqrt%20%2812%29%5E2-4%28-49%29%2A0%7D%7B2%2A%28-49%29%7D%3D%200" />

<img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B-12-%20%5Csqrt%20%2812%29%5E2-4%28-49%29%2A0%7D%7B2%2A%28-49%29%7D%3D%20%20%5Cfrac%7B12%7D%7B49%7D%20" />.