Question 1106845
multiply numerator and denominator by conjugate of denominator, sqrt(13)-6
the numerator becomes [sqrt(13)-6]^2, and the denominator becomes 13-36
the numerator may be expanded to become 13+36-12 sqrt(13)
the whole fraction is -(49/23)-12(sqrt(13)
A is -(49/23), B is -12 and C is 13