Question Details

Directions (41-45):In each of these questions, two equations (I) and (II) are given. Solve the equations and mark the correct option.



I. 5x2 + 11x + 2 = 0
II. 4y2 + 13y + 3 = 0

Options

A

If x > y

B

If x ≥ y

C

If x < y

D

If x ≤ y

E

If x = y or no relation can be established between x and y

Show Answer

Correct Answer :

Option E

If x = y or no relation can be established between x and y

Solution :

The correct option is If x = y or no relation can be established between x and y.

To determine the relationship between x and y, we need to solve both quadratic equations step-by-step.

Step 1: Solve Equation I for x

The given equation is:

5x2+11x+2=0

We split the middle term 11x such that the product of the coefficients is 5&times;2=10 and their sum is 11 (i.e., 10 and 1):

5x2+10x+1x+2=0

5x(x+2)+1(x+2)=0

(5x+1)(x+2)=0

Setting each factor equal to zero gives:

x=-2 or x=-15=-0.2


Step 2: Solve Equation II for y

The given equation is:

4y2+13y+3=0

We split the middle term 13y such that the product of the coefficients is 4&times;3=12 and their sum is 13 (i.e., 12 and 1):

4y2+12y+1y+3=0

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

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

Setting each factor equal to zero gives:

y=-3 or y=-14=-0.25


Step 3: Compare the values of x and y

Let's compare each value of x with each value of y:

1. When x=-0.2 and y=-0.25: here x>y because -0.2 is larger than -0.25.
2. When x=-2 and y=-0.25: here x<y because -2 is smaller than -0.25.

Since we obtain both x>y and x<y, no definite relationship can be established between x and y.

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