Question 1174930
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Hi
 x + y = 23
  xy = 120  0r y =120/x
 x + 120/x = 23
  x^2 + 120 = 23x
  x^2 - 23x + 120 = 0
 (x-15)(x-8) = 0      0r use    {{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}} 
  x = 15 0r x = 8
Wish You the Best in your Studies.
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