Can a 6th degree equation be solved by hand without a CAS?

  • Thread starter Mr Davis 97
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In summary, a 6th degree equation is a polynomial equation with a variable raised to the 6th power. It can be solved using a combination of algebraic techniques and may involve advanced mathematical concepts. All 6th degree equations have at least one solution, but the number and nature of the solutions may vary. These equations have real-life applications in various fields, and there is no specific method to solve all of them. The approach to solving each equation depends on its specific form and the most suitable techniques.
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Mr Davis 97
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I have the equation ##2t^{6} + 13t^{4} - 36 = 0##. How can I solve this for the real roots without using a CAS? That is, by hand?
 
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  • #2
First substitute ##u=t^2##. Then apply the rational root theorem.
 
  • #4
After the substitution, you might want to graph it.
 

1. What is a 6th degree equation?

A 6th degree equation is a polynomial equation that contains a variable raised to the 6th power. It can be written in the form ax^6 + bx^5 + cx^4 + dx^3 + ex^2 + fx + g = 0, where a, b, c, d, e, f, and g are constants and x is the variable.

2. How do you solve a 6th degree equation?

Unlike quadratic, cubic, and quartic equations, there is no general formula to solve 6th degree equations. Therefore, it requires a combination of algebraic techniques, such as factoring, the rational root theorem, and the method of undetermined coefficients. It may also involve the use of advanced mathematical concepts, such as complex numbers.

3. Can all 6th degree equations be solved?

Yes, all 6th degree equations have at least one real or complex solution. However, some equations may have multiple solutions or no real solutions depending on the values of the coefficients.

4. Are there any real-life applications of solving 6th degree equations?

Yes, 6th degree equations are commonly used in physics, engineering, and other sciences to model various phenomena and relationships. They can also be used in finance and economics to calculate interest rates, growth rates, and other financial variables.

5. Is there a specific method to solve all 6th degree equations?

No, there is no single method that can be used to solve all 6th degree equations. The approach to solving each equation may vary depending on its specific form and the techniques that are most suitable for it.

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