Westonci.ca is your trusted source for finding answers to all your questions. Ask, explore, and learn with our expert community. Join our Q&A platform and get accurate answers to all your questions from professionals across multiple disciplines. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

If [tex] x - 210 + x = x^3 [/tex], then find the value of [tex] 23x + 4 [/tex].

Sagot :

To solve the equation [tex]\( x - 210 + x = x^3 \)[/tex], let’s first simplify this equation step-by-step.

Given:
[tex]\[ x - 210 + x = x^3 \][/tex]

Simplify the left side by combining like terms:
[tex]\[ 2x - 210 = x^3 \][/tex]

Rearrange the equation to set it to zero:
[tex]\[ x^3 - 2x + 210 = 0 \][/tex]

We need to solve [tex]\( x^3 - 2x + 210 = 0 \)[/tex] for [tex]\( x \)[/tex]. The solutions to this cubic equation are quite complex, and they involve complex numbers and roots. These solutions are:

[tex]\[ x_1 = -\frac{2}{\left(-\frac{1}{2} - \frac{\sqrt{3}}{2}i\right)\left(3\sqrt{893001} + 2835\right)^{1/3}} - \frac{\left(-\frac{1}{2} - \frac{\sqrt{3}}{2}i\right)\left(3\sqrt{893001} + 2835\right)^{1/3}}{3} \][/tex]

[tex]\[ x_2 = -\frac{\left(-\frac{1}{2} + \frac{\sqrt{3}}{2}i\right)\left(3\sqrt{893001} + 2835\right)^{1/3}}{3} - \frac{2}{\left(-\frac{1}{2} + \frac{\sqrt{3}}{2}i\right)\left(3\sqrt{893001} + 2835\right)^{1/3}} \][/tex]

[tex]\[ x_3 = -\frac{\left(3\sqrt{893001} + 2835\right)^{1/3}}{3} - \frac{2}{\left(3\sqrt{893001} + 2835\right)^{1/3}} \][/tex]

These solutions are denoted as [tex]\( x_1 \)[/tex], [tex]\( x_2 \)[/tex], and [tex]\( x_3 \)[/tex].

Next, we calculate [tex]\( 23x + 4 \)[/tex] for each solution.

For [tex]\( x_1 \)[/tex]:
[tex]\[ 23x_1 + 4 = 4 - \frac{46}{\left( -\frac{1}{2} - \frac{\sqrt{3}}{2}i \right) \left( 3\sqrt{893001} + 2835 \right)^{1/3}} - \frac{23\left( -\frac{1}{2} - \frac{\sqrt{3}}{2}i \right) \left( 3\sqrt{893001} + 2835 \right)^{1/3}}{3} \][/tex]

For [tex]\( x_2 \)[/tex]:
[tex]\[ 23x_2 + 4 = 4 - \frac{23\left( -\frac{1}{2} + \frac{\sqrt{3}}{2}i \right) \left( 3\sqrt{893001} + 2835 \right)^{1/3}}{3} - \frac{46}{\left( -\frac{1}{2} + \frac{\sqrt{3}}{2}i \right) \left( 3\sqrt{893001} + 2835 \right)^{1/3}} \][/tex]

For [tex]\( x_3 \)[/tex]:
[tex]\[ 23x_3 + 4 = -\frac{23 \left( 3\sqrt{893001} + 2835 \right)^{1/3}}{3} - \frac{46}{\left( 3\sqrt{893001} + 2835 \right)^{1/3}} + 4 \][/tex]

This is the detailed solution for the values of [tex]\( 23x + 4 \)[/tex] given the solutions of the cubic equation [tex]\( x^3 - 2x + 210 = 0 \)[/tex].
Thank you for visiting our platform. We hope you found the answers you were looking for. Come back anytime you need more information. We appreciate your time. Please come back anytime for the latest information and answers to your questions. Stay curious and keep coming back to Westonci.ca for answers to all your burning questions.