Question Details

Directions: In the following question, two quadratic equations labeled I and II are provided. You are required to solve both equations to determine the relationship between x and y.



I. 2x2 + 16x + 32 = 0
II. 2y2 + 45y - 98 = 0

Options

A

x > y

B

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

C

x ≥ y

D

x < y

E

x ≤ y

Show Answer

Correct Answer :

Option B

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

Solution :

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

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

Step 1: Solve Equation I for x

Given Equation I:
2x2+16x+32=0
Divide the entire equation by 2:
x2+8x+16=0
Factorize the perfect square quadratic expression:
(x+4)2=0
x+4=0
x=-4

Thus, the value of x is -4.

Step 2: Solve Equation II for y

Given Equation II:
2y2+45y-98=0
Split the middle term 45y into 49y-4y since 49×(-4)=-196 (which equals 2×(-98)):
2y2+49y-4y-98=0
Factor by grouping:
y(2y+49)-2(2y+49)=0
(2y+49)(y-2)=0
Solving for y:
2y+49=0y=-24.5
y-2=0y=2

Thus, the values of y are 2 and -24.5.

Step 3: Compare values of x and y

1. When x=-4 and y=2: -4<2, so x<y.
2. When x=-4 and y=-24.5: -4>-24.5, so x>y.

Since x<y in one case and x>y in another case, no relation can be established between x and y.

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