Let x be the age of the daughter now
thus the father age = x+30 > the father is 30 years older than the
daughter
and x(x+30) = 736 > the product of their ages now
x²+30x =736
x²+30x-736 = 0
(x+46)(x-16) = 0
x = -46 or 16
thus the daughter age is 16 years now
& the father age is ( x + 30) = 16+ 30 = 46years now
