Question

Usando formula general resuelve:
Xcuadrado+10x+25=0

a)x= -4 b)x=3 c)x=5 d)x= -5

Answer 1

$x^{2} +10x+25= 0$
x               +5
x               +5

5x+5x = 10x

(x+5)(x+5)=0

$( x+5)^{2} =0$

x+5=0

 x=-5