(x^2+1)^lg(7x^2-3x+1)+(7x^2-3x+1)^lg(x^2+1) =2

4 min read Jun 06, 2024
(x^2+1)^lg(7x^2-3x+1)+(7x^2-3x+1)^lg(x^2+1) =2

Solving the Power Equation: $(x^2+1)^{\lg(7x^2-3x+1)}+(7x^2-3x+1)^{\lg(x^2+1)} = 2$

In this article, we will delve into the world of power equations and explore a fascinating example: $(x^2+1)^{\lg(7x^2-3x+1)}+(7x^2-3x+1)^{\lg(x^2+1)} = 2$. This equation may seem daunting at first, but with the right approach, we can uncover the underlying beauty of mathematics.

Understanding the Equation

Before we dive into solving the equation, let's take a closer look at its components:

  • Base Functions: We have two base functions: $x^2+1$ and $7x^2-3x+1$. These functions are elevated to powers that involve logarithmic functions.
  • Logarithmic Functions: The powers of the base functions are defined using logarithmic functions: $\lg(7x^2-3x+1)$ and $\lg(x^2+1)$. The logarithm is taken to the base 10 (common logarithm).

Simplifying the Equation

To tackle this equation, we need to simplify it by rewriting the logarithmic functions. Let's start by applying the change of base formula for logarithms:

$\lg(a) = \frac{\ln(a)}{\ln(10)}$

Applying this formula to our equation, we get:

$(x^2+1)^{\frac{\ln(7x^2-3x+1)}{\ln(10)}} + (7x^2-3x+1)^{\frac{\ln(x^2+1)}{\ln(10)}} = 2$

Now, let's focus on the exponent of the first term:

$\frac{\ln(7x^2-3x+1)}{\ln(10)} = \frac{\ln(7(x^2 - \frac{3}{7}x + \frac{1}{7}))}{\ln(10)}$

Using the properties of logarithms, we can rewrite the exponent as:

$\frac{\ln(7)}{\ln(10)} + \frac{\ln(x^2 - \frac{3}{7}x + \frac{1}{7})}{\ln(10)}$

Rewriting the Equation

Substituting this simplified exponent back into the original equation, we get:

$(x^2+1)^{\frac{\ln(7)}{\ln(10)} + \frac{\ln(x^2 - \frac{3}{7}x + \frac{1}{7})}{\ln(10)}} + (7x^2-3x+1)^{\frac{\ln(x^2+1)}{\ln(10)}} = 2$

Future Directions

At this point, the equation is still complex, and solving it analytically might be challenging. However, we can explore numerical methods or approximation techniques to find the solutions.

Conclusion

In conclusion, we have rewrote the original equation, $(x^2+1)^{\lg(7x^2-3x+1)}+(7x^2-3x+1)^{\lg(x^2+1)} = 2$, into a more simplified form. This simplified equation offers a better starting point for further analysis and solution-finding. The journey to solve this equation is ongoing, and we invite readers to share their insights and approaches to tackling this fascinating problem.

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