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In each of the following questions, two ...

In each of the following questions, two equations are given. You have to solve them and
I. `6x^(2) + x-1 = 0` II. `8y^(2) + 10y + 3 = 0`

A

if `x gt y`

B

if `x ge y`

C

if `x lt y`

D

if `x le y`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the given equations step by step, we will start with the first equation and then move on to the second equation. ### Step 1: Solve the first equation \(6x^2 + x - 1 = 0\) 1. **Rearranging the equation**: The equation is already in standard form \(ax^2 + bx + c = 0\) where \(a = 6\), \(b = 1\), and \(c = -1\). 2. **Factoring the quadratic**: We will factor the quadratic expression. We can rewrite the middle term: \[ 6x^2 + 3x - 2x - 1 = 0 \] Now, group the terms: \[ (6x^2 + 3x) + (-2x - 1) = 0 \] Factor out common terms: \[ 3x(2x + 1) - 1(2x + 1) = 0 \] This gives us: \[ (3x - 1)(2x + 1) = 0 \] 3. **Finding the roots**: Set each factor to zero: - \(3x - 1 = 0 \Rightarrow x = \frac{1}{3}\) - \(2x + 1 = 0 \Rightarrow x = -\frac{1}{2}\) Thus, the solutions for \(x\) are: \[ x = \frac{1}{3} \quad \text{and} \quad x = -\frac{1}{2} \] ### Step 2: Solve the second equation \(8y^2 + 10y + 3 = 0\) 1. **Rearranging the equation**: The equation is already in standard form where \(a = 8\), \(b = 10\), and \(c = 3\). 2. **Factoring the quadratic**: We will factor the quadratic expression. We can rewrite the middle term: \[ 8y^2 + 4y + 6y + 3 = 0 \] Now, group the terms: \[ (8y^2 + 4y) + (6y + 3) = 0 \] Factor out common terms: \[ 4y(2y + 1) + 3(2y + 1) = 0 \] This gives us: \[ (4y + 3)(2y + 1) = 0 \] 3. **Finding the roots**: Set each factor to zero: - \(4y + 3 = 0 \Rightarrow y = -\frac{3}{4}\) - \(2y + 1 = 0 \Rightarrow y = -\frac{1}{2}\) Thus, the solutions for \(y\) are: \[ y = -\frac{3}{4} \quad \text{and} \quad y = -\frac{1}{2} \] ### Step 3: Compare the values of \(x\) and \(y\) Now we have the values: - For \(x\): \(\frac{1}{3}\) and \(-\frac{1}{2}\) - For \(y\): \(-\frac{3}{4}\) and \(-\frac{1}{2}\) We will compare these values: 1. **Comparing \(x = \frac{1}{3}\) with \(y = -\frac{3}{4}\)**: \[ \frac{1}{3} > -\frac{3}{4} \] 2. **Comparing \(x = \frac{1}{3}\) with \(y = -\frac{1}{2}\)**: \[ \frac{1}{3} > -\frac{1}{2} \] 3. **Comparing \(x = -\frac{1}{2}\) with \(y = -\frac{3}{4}\)**: \[ -\frac{1}{2} > -\frac{3}{4} \] 4. **Comparing \(x = -\frac{1}{2}\) with \(y = -\frac{1}{2}\)**: \[ -\frac{1}{2} = -\frac{1}{2} \] ### Conclusion From the comparisons, we can conclude that: - \(x\) is always greater than or equal to \(y\). Thus, the final answer is: \[ \text{Option: } x \geq y \]
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