What are the solutions to the equation x^3-3x-2.1=0 ?

The solutions to the equation x^3-3x-2.1=0 are x\approx 2.01102…

Find the zeros of x^3-3x-2.1=0

The zeros of x^3-3x-2.1=0 are x\approx 2.01102…

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x^{3} - 3 x - 2.1 = 0

x \approx 2.01102 \dots

Solution steps

x^{3} - 3 x - 2.1 = 0

Multiply both sides by

10

10 x^{3} - 30 x - 21 = 0

Find one solution for

10 x^{3} - 30 x - 21 = 0

using Newton-Raphson:

x \approx 2.01102 \dots

Apply long division:

\frac{10 x ^{3} - 30 x - 21}{x - 2.01102 \dots} = 10 x^{2} + 20.11029 \dots x + 10.44241 \dots

10 x^{2} + 20.11029 \dots x + 10.44241 \dots \approx 0

Find one solution for

10 x^{2} + 20.11029 \dots x + 10.44241 \dots = 0

using Newton-Raphson:

No Solution for

x \in R

The solution is

x \approx 2.01102 \dots

9 x^{3} = 7 x^{2}

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

(y^{2} - 8)^{2} + 4 (y^{2} - 8) - 5 = 0

2 x^{3} - x^{2} - 7 x - 3 = 0

5 x^{3} - 3 x + 1 = 0

What are the solutions to the equation x^3-3x-2.1=0 ?
The solutions to the equation x^3-3x-2.1=0 are x\approx 2.01102…
Find the zeros of x^3-3x-2.1=0
The zeros of x^3-3x-2.1=0 are x\approx 2.01102…