Question

$I.x^2-463=321$
$II.y^2-421=308$

• A. x > y
• B. x $\ge$ y
• C. x < y
• D. x $\le$ y
• E. x = y or the relationship cannot be established

Answer 1

The correct option is E x = y or the relationship cannot be established

Equation I
$x^2=463+321$
$=784$
$\therefore x=\sqrt{784}$
$\therefore x=\pm 28$
Equation II
$y^2=308+421$
$=729$
$\therefore y=\sqrt{729}=\pm 27$
Hence, x = y or the relationship cannot be established.