Explicación:
(5x - 1)*(5x - 1)= 10x² -5x -5x +1= 10x² -10x +1
[tex]x = 10 - \frac{ \sqrt{10 {}^{2} - 4 \times 10 \times 1 } }{2 \times 10} = 10 \frac{ \sqrt{100 - 40} }{20} = 10 \frac{ \sqrt{60} }{20} [/tex]
x= 10 - √60/20 =9,6127
x= 10+√60/20=10,387
