Instructions

In the following questions two equations numbered I and II are given. You have to solve both the equations and
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 or the relationship cannot be established.

Question 145

I.  $$3x^{2}+10x+8=0$$
II. $$3y^{2}+7y+4=0$$

Solution

I.$$3x^{2} + 10x + 8 = 0$$

=> $$3x^2 + 6x + 4x + 8 = 0$$

=> $$3x (x + 2) + 4 (x + 2) = 0$$

=> $$(x + 2) (3x + 4) = 0$$

=> $$x = -2 , \frac{-4}{3}$$

II.$$3y^{2} + 7y + 4 = 0$$

=> $$3y^2 + 3y + 4y + 4 = 0$$

=> $$3y (y + 1) + 4 (y + 1) = 0$$

=> $$(y + 1) (3y + 4) = 0$$

=> $$y = -1 , \frac{-4}{3}$$

$$\therefore x \leq y$$


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