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Find the smallest integral x satisfying the inequality `(x-5)/(x^(2) + 5x -14) gt 0`.

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To solve the inequality \(\frac{x-5}{x^2 + 5x - 14} > 0\), we will follow these steps: ### Step 1: Factor the denominator The denominator is \(x^2 + 5x - 14\). We can factor this quadratic expression. To factor \(x^2 + 5x - 14\), we look for two numbers that multiply to \(-14\) and add to \(5\). These numbers are \(7\) and \(-2\). Thus, we can write: \[ x^2 + 5x - 14 = (x + 7)(x - 2) \] ### Step 2: Rewrite the inequality Now we can rewrite the inequality: \[ \frac{x - 5}{(x + 7)(x - 2)} > 0 \] ### Step 3: Identify critical points Next, we find the critical points by setting the numerator and denominator to zero: 1. \(x - 5 = 0 \Rightarrow x = 5\) 2. \(x + 7 = 0 \Rightarrow x = -7\) 3. \(x - 2 = 0 \Rightarrow x = 2\) The critical points are \(x = -7\), \(x = 2\), and \(x = 5\). ### Step 4: Determine the intervals The critical points divide the number line into the following intervals: 1. \((-∞, -7)\) 2. \((-7, 2)\) 3. \((2, 5)\) 4. \((5, ∞)\) ### Step 5: Test each interval We will test a point from each interval to see where the inequality holds. 1. **Interval \((-∞, -7)\)**: Choose \(x = -8\) \[ \frac{-8 - 5}{(-8 + 7)(-8 - 2)} = \frac{-13}{(-1)(-10)} = \frac{-13}{10} < 0 \quad \text{(not satisfied)} \] 2. **Interval \((-7, 2)\)**: Choose \(x = 0\) \[ \frac{0 - 5}{(0 + 7)(0 - 2)} = \frac{-5}{7 \cdot (-2)} = \frac{-5}{-14} > 0 \quad \text{(satisfied)} \] 3. **Interval \((2, 5)\)**: Choose \(x = 3\) \[ \frac{3 - 5}{(3 + 7)(3 - 2)} = \frac{-2}{10 \cdot 1} = \frac{-2}{10} < 0 \quad \text{(not satisfied)} \] 4. **Interval \((5, ∞)\)**: Choose \(x = 6\) \[ \frac{6 - 5}{(6 + 7)(6 - 2)} = \frac{1}{13 \cdot 4} = \frac{1}{52} > 0 \quad \text{(satisfied)} \] ### Step 6: Combine results From our tests, the inequality \(\frac{x - 5}{(x + 7)(x - 2)} > 0\) is satisfied in the intervals \((-7, 2)\) and \((5, ∞)\). ### Step 7: Find the smallest integral solution The smallest integer in the interval \((-7, 2)\) is \(-6\). ### Final Answer Thus, the smallest integral \(x\) satisfying the inequality is: \[ \boxed{-6} \]
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RESONANCE ENGLISH-EQUATIONS -EXERCISE-1 (PART -1: PRE RMO)
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  14. Given 3x^(2) +x=1, find the value of 6x^(3) - x^(2) -3x + 2010.

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