Question

Holaaa m ayudan plis? con resolución (: ​

Answer 1

Resolución del problema

∆ Aplicamos productos notables ( binomio al cuadrado )

${(5x - 2)}^{2} = {(2x - 5)}^{2}$

${(5x)}^{2} - 2.5x.2 + {2}^{2} = {(2x)}^{2} - 2.2x.5 + {5}^{2}$

$25 {x}^{2} - 20x + 4 = 4 {x}^{2} - 20x + 25$

$25 {x}^{2} - 20x + 4 - 4 {x}^{2} + 20x - 25 = 0$

$21 {x}^{2} - 21 = 0$

$21 {x}^{2} = 21$

${x}^{2} = \frac{21}{21}$

${x}^{2} = 1$

$\sqrt{ {x}^{2} } = \sqrt{1}$

$|x| = 1$

x1 = +1

x2= -1

R// = La mayor raíz es 1

Saludos cordiales