What are the solutions to the equation x^3+2x-9x-18=0 ?

The solutions to the equation x^3+2x-9x-18=0 are x\approx 3.48733…

Find the zeros of x^3+2x-9x-18=0

The zeros of x^3+2x-9x-18=0 are x\approx 3.48733…

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x^{3} + 2 x - 9 x - 18 = 0

x \approx 3.48733 \dots

Solution steps

x^{3} + 2 x - 9 x - 18 = 0

Refine

x^{3} - 7 x - 18 = 0

Find one solution for

x^{3} - 7 x - 18 = 0

using Newton-Raphson:

x \approx 3.48733 \dots

Apply long division:

\frac{x ^{3} - 7 x - 18}{x - 3.48733 \dots} = x^{2} + 3.48733 \dots x + 5.16152 \dots

x^{2} + 3.48733 \dots x + 5.16152 \dots \approx 0

Find one solution for

x^{2} + 3.48733 \dots x + 5.16152 \dots = 0

using Newton-Raphson:

No Solution for

x \in R

The solution is

x \approx 3.48733 \dots

x^{3} + x^{2} - 5 = 0

x^{2} (x + 8)^{2} = 140

10135 = 4617 \cdot (1 + x)^{11}

C - C^{3} = 15

2 x^{3} - 6 x^{2} + 2 x = 0

What are the solutions to the equation x^3+2x-9x-18=0 ?
The solutions to the equation x^3+2x-9x-18=0 are x\approx 3.48733…
Find the zeros of x^3+2x-9x-18=0
The zeros of x^3+2x-9x-18=0 are x\approx 3.48733…