x+y=28 ---->y = 28-x
xy=160
x(28-x) = 160
-x^2 + 28x - 160 = 0
x^2 - 28x + 160 = 0
(x-20)(x-8) = 0
x = 20 or x = 8
if x=20 or x=8
if x = 20 , y = 8
if x = 8 , y = 20
the two numbers are 20 and 8
Two numbers that have a sum of 28 and a product of 160. What are the two numbers?
1 answer
1 answer