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I. x^(2) + 17x+72 = 0" ...

I. ` x^(2) + 17x+72 = 0" "` II. ` y^(2) + 19y + 90 = 0`

A

` x lt y`

B

`x gt y`

C

` x le y`

D

`x ge y`

Text Solution

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The correct Answer is:
To solve the given equations step by step, we will first solve each quadratic equation separately and then compare the values of \(x\) and \(y\). ### Step 1: Solve the first equation \(x^2 + 17x + 72 = 0\) 1. **Identify the coefficients**: Here, \(a = 1\), \(b = 17\), and \(c = 72\). 2. **Factor the quadratic**: We need to find two numbers that multiply to \(72\) (the constant term) and add up to \(17\) (the coefficient of \(x\)). - The numbers \(8\) and \(9\) satisfy this condition because \(8 \times 9 = 72\) and \(8 + 9 = 17\). 3. **Rewrite the equation**: We can rewrite the equation as: \[ (x + 8)(x + 9) = 0 \] 4. **Set each factor to zero**: - \(x + 8 = 0 \implies x = -8\) - \(x + 9 = 0 \implies x = -9\) Thus, the solutions for \(x\) are: \[ x = -8 \quad \text{and} \quad x = -9 \] ### Step 2: Solve the second equation \(y^2 + 19y + 90 = 0\) 1. **Identify the coefficients**: Here, \(a = 1\), \(b = 19\), and \(c = 90\). 2. **Factor the quadratic**: We need to find two numbers that multiply to \(90\) and add up to \(19\). - The numbers \(9\) and \(10\) satisfy this condition because \(9 \times 10 = 90\) and \(9 + 10 = 19\). 3. **Rewrite the equation**: We can rewrite the equation as: \[ (y + 9)(y + 10) = 0 \] 4. **Set each factor to zero**: - \(y + 9 = 0 \implies y = -9\) - \(y + 10 = 0 \implies y = -10\) Thus, the solutions for \(y\) are: \[ y = -9 \quad \text{and} \quad y = -10 \] ### Step 3: Compare the values of \(x\) and \(y\) Now we have: - \(x = -8\) or \(x = -9\) - \(y = -9\) or \(y = -10\) We can compare the values: 1. If \(x = -8\) and \(y = -9\), then \(x > y\). 2. If \(x = -9\) and \(y = -10\), then \(x > y\). In both cases, we find that: \[ x > y \] ### Conclusion The relation between \(x\) and \(y\) is: \[ x \geq y \]

To solve the given equations step by step, we will first solve each quadratic equation separately and then compare the values of \(x\) and \(y\). ### Step 1: Solve the first equation \(x^2 + 17x + 72 = 0\) 1. **Identify the coefficients**: Here, \(a = 1\), \(b = 17\), and \(c = 72\). 2. **Factor the quadratic**: We need to find two numbers that multiply to \(72\) (the constant term) and add up to \(17\) (the coefficient of \(x\)). - The numbers \(8\) and \(9\) satisfy this condition because \(8 \times 9 = 72\) and \(8 + 9 = 17\). 3. **Rewrite the equation**: We can rewrite the equation as: ...
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