Question 917028
x the number
(20-x)(17-x) = 180 ***
x^2 - 37x+ 340 - 180 = 0
x^2 - 37x+ 160 = 0
(x-32)(x-5) = 0
x = 5, 32
And...checking***
  {{{(20-5)(17-5) = 15*12 = 180}}}
 {{{(20-32)(17-32) = (-12)(-15) = 180}}}