Home
Class 14
MATHS
In these questions two equations numbere...

In these questions two equations numbered I and II are given. You have to solve both the 'equations and mark the appropriate option. Give answer
`6x^2+5x+1=0`
`6y^2+7y+2=0`

A

If `xgty`

B

if `xlty`

C

if `xgey`

D

if `xley`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the equations given in the question, we will follow these steps: ### Step 1: Solve the first equation \(6x^2 + 5x + 1 = 0\) To solve this quadratic equation, we will use the factorization method. 1. Identify \(a = 6\), \(b = 5\), and \(c = 1\). 2. We need to find two numbers that multiply to \(a \cdot c = 6 \cdot 1 = 6\) and add up to \(b = 5\). The numbers are \(3\) and \(2\). 3. Rewrite the equation as: \[ 6x^2 + 3x + 2x + 1 = 0 \] 4. Group the terms: \[ (6x^2 + 3x) + (2x + 1) = 0 \] 5. Factor by grouping: \[ 3x(2x + 1) + 1(2x + 1) = 0 \] 6. Factor out the common term: \[ (3x + 1)(2x + 1) = 0 \] 7. Set each factor to zero: - \(3x + 1 = 0 \Rightarrow x = -\frac{1}{3}\) - \(2x + 1 = 0 \Rightarrow x = -\frac{1}{2}\) ### Step 2: Solve the second equation \(6y^2 + 7y + 2 = 0\) Now, we will solve the second quadratic equation using the same method. 1. Identify \(a = 6\), \(b = 7\), and \(c = 2\). 2. We need to find two numbers that multiply to \(a \cdot c = 6 \cdot 2 = 12\) and add up to \(b = 7\). The numbers are \(4\) and \(3\). 3. Rewrite the equation as: \[ 6y^2 + 4y + 3y + 2 = 0 \] 4. Group the terms: \[ (6y^2 + 4y) + (3y + 2) = 0 \] 5. Factor by grouping: \[ 2y(3y + 2) + 1(3y + 2) = 0 \] 6. Factor out the common term: \[ (2y + 1)(3y + 2) = 0 \] 7. Set each factor to zero: - \(2y + 1 = 0 \Rightarrow y = -\frac{1}{2}\) - \(3y + 2 = 0 \Rightarrow y = -\frac{2}{3}\) ### Step 3: Compare the values of \(x\) and \(y\) Now we have the values: - For \(x\): \(-\frac{1}{3} \approx -0.33\) and \(-\frac{1}{2} = -0.5\) - For \(y\): \(-\frac{1}{2} = -0.5\) and \(-\frac{2}{3} \approx -0.66\) Now we will compare these values: 1. Compare \(x = -\frac{1}{3}\) with \(y = -\frac{1}{2}\): - \(-0.33 > -0.5\) (So, \(x > y\)) 2. Compare \(x = -\frac{1}{3}\) with \(y = -\frac{2}{3}\): - \(-0.33 > -0.66\) (So, \(x > y\)) 3. Compare \(x = -\frac{1}{2}\) with \(y = -\frac{1}{2}\): - \(-0.5 = -0.5\) (So, \(x = y\)) 4. Compare \(x = -\frac{1}{2}\) with \(y = -\frac{2}{3}\): - \(-0.5 > -0.66\) (So, \(x > y\)) ### Conclusion From the comparisons, we can conclude that \(x\) is greater than or equal to \(y\). ### Final Answer The correct option is that \(x\) is greater than or equal to \(y\). ---
Promotional Banner

Similar Questions

Explore conceptually related problems

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer 6x^2 + 5x + 1 = 0 2y^2 – y – 1 = 0

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer. x^3 = 64 Y^2 = 16

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer 6x^2 – 13x + 2 = 0 2y^2 – 19y + 30 = 0

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer. x^2 + 4x - 45 = 0 y^2 - 6y + 8 = 0

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer. x^2 – 8x + 16 = 0 y^2 – 7y + 12 = 0

In the following questions two equations numbered I and II are given. You have to solve both the equations and Give answer I x^(2)-1=0 II. y^(2) +4y+3=0

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer. x^2 + 9x + 20 = 0 8y^2 – 15y + 7 = 0

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer. x^2 – 20x + 91 = 0 y^2 + 16y + 63 = 0

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer. x^2 – 11x + 30 = 0 y^2 + 12y + 36 = 0

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer 3x^2 – 11x + 6 = 0 2y^2 – 7y + 6 = 0