If #a# and #b# are integers such that #(1/sqrt(2017))# is the solution of the quadratic equation #x^2+ax+b=0#, then #a+b# ?

1 Answer
Oct 19, 2017

There are no integers #a,b# that meet the condition.

Explanation:

Substitute #x=1/(sqrt(2017)# in the equation #x^2+ax+b=0# and you obtain
#1/2017 + a/sqrt(2017) + b =0#
#(1/2017+b) + a/sqrt(2017)=0#.

Since #1/sqrt(2017)# is irrational and #a, 1/2017+b# are rational, you have to satisfy:
#1/2017+b=0#, #a=0#
Solving the equation you find #(a,b)=(0,-1/2017)# and #b# is not an integer.