ern5231 wrote:10) What is the value of (X ^ 2-X-2) (Y ^ 2-Y-2)?
(1) X=2
(2) Y=3
Simple but I am just confirming
Statement 1:
x= 2 => x^2 - x - 2 = 0
=> irrespective of y, the product will be y.
SUFFICIENT
Statement 2:
y =3 => y^2 - y -2 = 4
So, the product will depend on the value of x.
INSUFFICIENT
Go for A
