Question

Como se resuelve 2(3x-1)×(x-2)+2x-1=(x-1)²+1 ?

Answer 1

(6x-2)x(x-2)+2x - 1=$x^{2}$-2x+1+1

6$x^{2}$-12x-2x+4+2x-1=$x^{2}$-2x+2

6$x^{2}$-12x+3=$x^{2}$-2x+2

6$x^{2}$-12x+3-$x^{2}$+2x-2=0

5$x^{2}$-10x+1=0

10+-√100-20/10

10+-√80/10

10+-4√5/10

10+4√5/10

10-4√5/10

x=5+2√5/5

5-2√5/5

Respuesta

x1=5-2√5/5    x2=5+2√5/5