MatemáticasBásico1 respuestas

INECUACIONES ayuda por favor?

INECUACIONES ayuda por favor! X[tex] x ^ {2} - 11x + 18 \ \ textgreater \ 0[ / tex] [tex] x ^ {2} - 6x + 8 \ \ textless \ 0[ / tex] [tex] x ^ {2} - 9x + 20 \ leq 0[ / tex] [tex] x ^ {2} - 2x - 15 \ geq 0[ / tex].

En resumen

En todos tienes que factorizar <img src="https://tex.z-dn.net/?f=%28x-9%29%28x-2%29%3E0" />0" alt = "(x - 9)(x - 2)>0" align = "absmiddle" class = "latex - formula"> entonces <img src="https://tex.z-dn.net/?

Mejor respuesta

Jabby
3

En todos tienes que factorizar

<img src="https://tex.z-dn.net/?f=%28x-9%29%28x-2%29%3E0" />0" alt = "(x - 9)(x - 2)>0" align = "absmiddle" class = "latex - formula">

entonces

<img src="https://tex.z-dn.net/?f=x%5Cin%28-%5Cinfty%2C2%29%5Ccup%289%2C%2B%5Cinfty%29" />

2)<img src="https://tex.z-dn.net/?f=x%5Cin%282%2C4%29" />

3)<img src="https://tex.z-dn.net/?f=x%5Cin%20%5B4%2C5%5D" />

4)<img src="https://tex.z-dn.net/?f=x%5Cin%28-%5Cinfty%2C-3%29%5Ccup%285%2C%2B%5Cinfty%29" />.