Question

if x square=16 and y square=4,what is the greatest possible value of (x-y) square? Options:a)4 b)-36 c)-4 d)36

Answer 1

Therefore it is option a

Answer 2

by given data we can get to know that the value of x is square root of 16 which is 4 so
x=4
similarly y is the square root of 4 which is 2
y=2

greatest possible value of (x-y)= 4-2=2.