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Solve the given quadratic equations and ...

Solve the given quadratic equations and mark the correct options based on your answer
I.` 6 x ^(2) - 5 x + 1 = 0`
II. ` 3 y^(2) + 8 y = 3 `

A

` x gt y `

B

` x ge y `

C

` x lt y `

D

` x le y `

Text Solution

AI Generated Solution

The correct Answer is:
To solve the given quadratic equations, we will tackle each equation step by step. ### Step 1: Solve the first quadratic equation \(6x^2 - 5x + 1 = 0\) We will use the quadratic formula, which is given by: \[ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \] For the equation \(6x^2 - 5x + 1 = 0\), we identify \(a = 6\), \(b = -5\), and \(c = 1\). #### Calculate the discriminant \(D\): \[ D = b^2 - 4ac = (-5)^2 - 4 \cdot 6 \cdot 1 = 25 - 24 = 1 \] #### Calculate the roots using the quadratic formula: \[ x = \frac{-(-5) \pm \sqrt{1}}{2 \cdot 6} = \frac{5 \pm 1}{12} \] This gives us two possible values for \(x\): 1. \(x_1 = \frac{5 + 1}{12} = \frac{6}{12} = \frac{1}{2}\) 2. \(x_2 = \frac{5 - 1}{12} = \frac{4}{12} = \frac{1}{3}\) ### Step 2: Solve the second quadratic equation \(3y^2 + 8y - 3 = 0\) Again, we will use the quadratic formula. Here, \(a = 3\), \(b = 8\), and \(c = -3\). #### Calculate the discriminant \(D\): \[ D = b^2 - 4ac = (8)^2 - 4 \cdot 3 \cdot (-3) = 64 + 36 = 100 \] #### Calculate the roots using the quadratic formula: \[ y = \frac{-8 \pm \sqrt{100}}{2 \cdot 3} = \frac{-8 \pm 10}{6} \] This gives us two possible values for \(y\): 1. \(y_1 = \frac{-8 + 10}{6} = \frac{2}{6} = \frac{1}{3}\) 2. \(y_2 = \frac{-8 - 10}{6} = \frac{-18}{6} = -3\) ### Step 3: Compare the values of \(x\) and \(y\) We have the following values: - From the first equation: \(x_1 = \frac{1}{2}\), \(x_2 = \frac{1}{3}\) - From the second equation: \(y_1 = \frac{1}{3}\), \(y_2 = -3\) #### Compare \(x\) and \(y\): 1. For \(x_1 = \frac{1}{2}\) and \(y_2 = -3\): \[ \frac{1}{2} > -3 \quad \text{(True)} \] 2. For \(x_2 = \frac{1}{3}\) and \(y_1 = \frac{1}{3}\): \[ \frac{1}{3} = \frac{1}{3} \quad \text{(True)} \] ### Conclusion: From the comparisons, we can conclude that: \[ x \geq y \] ### Final Answer: The correct option is \(x \geq y\).
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