Solving the Equation: (5x - 3)² + (2x - 3)(2x + 3) = 2
This article will guide you through the steps of solving the given equation: (5x - 3)² + (2x - 3)(2x + 3) = 2.
Understanding the Equation
The equation involves:
- Squaring a binomial: (5x - 3)²
- Multiplying conjugates: (2x - 3)(2x + 3)
We'll use the following algebraic identities to simplify:
- (a - b)² = a² - 2ab + b²
- (a - b)(a + b) = a² - b²
Steps to Solve
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Expand the squares and the product of conjugates: (5x - 3)² = (5x)² - 2(5x)(3) + 3² = 25x² - 30x + 9 (2x - 3)(2x + 3) = (2x)² - 3² = 4x² - 9
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Substitute the expanded terms back into the equation: 25x² - 30x + 9 + 4x² - 9 = 2
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Combine like terms: 29x² - 30x = 2
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Move all terms to one side to form a quadratic equation: 29x² - 30x - 2 = 0
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Solve the quadratic equation: This equation can be solved using the quadratic formula:
x = (-b ± √(b² - 4ac)) / 2a
Where:
- a = 29
- b = -30
- c = -2
Substitute the values and solve for x.
Conclusion
By following these steps, you can solve the equation (5x - 3)² + (2x - 3)(2x + 3) = 2. Remember to carefully apply the algebraic identities and simplify the equation to arrive at the solution(s) for x.