%5E2%2B(x%2B1)%5E2%2F(x%2B2)%5E2%3D8.jpeg "(x+1)^2+(x+1)^2/(x+2)^2=8")
Solving the Equation: (x+1)^2 + (x+1)^2/(x+2)^2 = 8
This equation presents a challenge because of the fractional term. Here's a step-by-step guide to solving it:
1. Simplifying the Equation
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Combine terms: Notice that the first two terms share a common factor of (x+1)^2. Let's factor that out: (x+1)^2 * (1 + 1/(x+2)^2) = 8
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Simplify the fraction:
(x+1)^2 * ((x+2)^2 + 1) / (x+2)^2 = 8
2. Getting Rid of the Fraction
- Multiply both sides by (x+2)^2: This will eliminate the fraction and make the equation easier to work with. (x+1)^2 * ((x+2)^2 + 1) = 8(x+2)^2
3. Expanding and Rearranging
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Expand the squares: (x^2 + 2x + 1)(x^2 + 4x + 5) = 8(x^2 + 4x + 4)
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Multiply the terms on the left side: x^4 + 6x^3 + 13x^2 + 14x + 5 = 8x^2 + 32x + 32
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Move all terms to one side: x^4 + 6x^3 + 5x^2 - 18x - 27 = 0
4. Solving the Quartic Equation
This is a quartic equation, which means it has a degree of 4. Unfortunately, there's no general formula to solve quartic equations. Here are some methods you can try:
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Factoring: Look for patterns or common factors to factor the equation. This might be possible in some cases but may be difficult with complex quartic equations.
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Rational Root Theorem: This theorem can help identify potential rational roots. However, it doesn't guarantee finding a solution.
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Numerical Methods: Using software or calculators with numerical methods like Newton-Raphson iteration can provide approximate solutions.
Important Note:
- Extraneous Solutions: After solving the equation, it's important to check your solutions against the original equation. Sometimes, solutions that appear valid might make the denominator of the original equation equal to zero, which is undefined. These are called extraneous solutions and must be discarded.
By following these steps, you can approach the solution of the given equation. Depending on the method you choose, you may be able to find exact solutions or approximate values.