If x + y = 5 and $x^2 + y^2 = 17$ then the value of $(x-y)^2$ is equal to :
Answer & explanation
Correct answer: option 1
If x + y = 5
$x^2 + y^2 = 17$
then the value of $(x-y)^2$ = ?
Put the value of,
x = 4 and y = 1, it satisfies the condition given in the question.
(x - y)2 = (4 - 1)2
= 9