Question

It the question of maths and i tried to solve it but not able to solve. So, Solve it???????

Answer 1

x^2-6x+7=0

x(x-6)=-7

x-6=-7/x

x+7/x=6-----------(1)

(x+7/x)^2=x^2+49/x^2+14

from eq (1),x+7/x=6, put in abov eq

(6)^2=x^2+49/x^2+14

36-14=x^2+49/x^2

hence x^2+49/x^2=22