Let 
by the smallest of the 6 integers. Then
But 189 is odd, so it cannot be divisible by 6, which means is not an integer...
To factor this quadratic equation into double brackets, you need to find two numbers that add together to equal 10, but also multiply to give you 9. These two numbers can be identified as 1 and 9, which will be the numbers you place in your parentheses as follows:
(x+1)(x+9)
Xm=(2+2)/2=2
Ym=(1+4)/2=2.5
(2,2.5)
