What two numbers have a product of 3.6 and a sum of 3.8?

Answer 1

let one number be x
the other is 3.8-x
x(3.8-x) = 3.6
3.8x - x^2 = 3.6
times -10
10x^2 - 38x + 36 = 0
5x^2 - 19x + 18 = 0
(x-2)(5x-9) = 0
x = 2 or x = 9/5 which is 1.8

so one number is 2, the other is 3.8-2 = 1.8

check (2)(1.8) = 3.6
2 + 1.8 = 3.8

Answer 2

what is the product o 3.6=