A root of equation ax 2 +bx+c=0 (Where a,b and c rational numbers
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Right Answer is: C
If one root is 5+3√3 which is irrational, then the other root has to be 5-3√3.
Since a, b and c are rational numbers.
ax2+bx+c = (x–5-3√3)(x-5+3√3)
a=1, b=-10, c=-2