In each of the following questions, one or two equations (s) is/are given. On
their basis you have to determine relation between x and y and then,
Give answer a: if x < y
Give answer b: if x > y
Give answer c: if x ≤ y
Give answer d: if x ≥ y
Give answer e: if x = y
I. $$x^{2} + 2x - 8 = 0$$
II. $$y^{2} - 2 = 7$$
I : $$x^2 + 2x - 8 = 0$$
=> $$x^2 + 4x - 2x - 8 = 0$$
=> $$x (x + 4) - 2 (x + 4) = 0$$
=> $$(x + 4) (x - 2) = 0$$
=> $$x = -4 , 2$$
II : $$y^2 - 2 = 7$$
=> $$y^2 -2 - 7 = 0$$
=> $$y^2 - 9 = 0$$
=> $$(y + 3) (y - 3) = 0$$
=> $$y = -3 , 3$$
$$\therefore$$ $$x < y$$
Create a FREE account and get:
Day-wise Structured & Planned Preparation Guide
By proceeding you agree to create your account
Free CAT Schedule PDF will be sent to your email address soon !!!
