144x^2-64=0

36x^2-100=0

5x^2-8x=0 me ayudan pliss

Respuestas

Respuesta dada por: fabrizquierdo
0

Explicación paso a paso:

 {144x}^{2}  - 64 = 0 \\  {144x}^{2}  = 64 \\  {x }^{2}  =  \frac{64}{144}  \\  \sqrt{ {x}^{2} }  =  +  -  \sqrt{ \frac{64}{144} }  \\ x =  +  -  \frac{8}{12}  \\ x1 =  \frac{2}{3}  \\ x2 =  -  \frac{2}{3}

36 {x}^{2}  - 100 = 0 \\  {36x}^{2}  = 100 \\  {x }^{2}  =  \frac{100}{36}  \\ x =  +  -  \sqrt{ \frac{100}{36} }  \\ x =  +  \frac{10}{6}  \\ x1 =  \frac{5}{3}  \\ x2 =  -  \frac{5}{3}

5 {x}^{2}  - 8x = 0 \\ x(5x - 8) = 0 \\ x1 = 0 \\ x2 =  \frac{8}{5}

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