Question 964656
ab= 800
then b = 800/a

a+b = 204 thus

a + 800/a = 204
a^2 + 800 - 204a = 0

a^2 - 204a + 800 = 0

a = 102 +- sqrt(102*102 - 800) = 102 +- 98

a= 200
b= 4