Question

The sum of two number is 18 and their product is 72. The smaller number is?​

Answer 1

hehehehehehhehehehehehehehehehh

Answer 2

Let x and y be the numbers
x + y = 18
y = 18 - x

xy = 72
x(18 - x) = 72
18x - x^2 = 72
x^2 - 18x + 72 = 0
x^2 - 6x - 12x + 72 = 0
x( x - 6) -12( x - 6 ) = 0
(x - 12) ( x - 6 ) = 0

x - 12 = 0
x = 12

x - 6 = 0
x = 6

x + y = 18
Thus the two numbers are 6 and 12
The smallest among this is 6