Question

Si: x+(1/x)=4 hallen x pls :'v

Answer 1

x+(1/x)=4
(x^2+1)/x=4
x^2+1= 4x
x^2-4x+1=0

a= 1
b= -4
c= 1

(-b ± √b^2 -4ac)/2a
-(-4) ± √(-4)^2 -4(1)(1) / 2(1)
4± √16 - 4 /2
(4± √12) / 2

x1= (4+ √12)/2
x2=(4 - √12)/2