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

The solutions to the equation -x^3+2x^2-x-2=0 are x\approx-0.69562…

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

The zeros of -x^3+2x^2-x-2=0 are x\approx-0.69562…

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

x \approx - 0.69562 \dots

Solution steps

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

Find one solution for

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

using Newton-Raphson:

x \approx - 0.69562 \dots

Apply long division:

\frac{- x ^{3} + 2 x ^{2} - x - 2}{x + 0.69562 \dots} = - x^{2} + 2.69562 \dots x - 2.87512 \dots

- x^{2} + 2.69562 \dots x - 2.87512 \dots \approx 0

Find one solution for

- x^{2} + 2.69562 \dots x - 2.87512 \dots = 0

using Newton-Raphson:

No Solution for

x \in R

The solution is

x \approx - 0.69562 \dots

x^{4} - 12 x^{2} + 20 = 0

x^{3} - 4 x^{2} + 8 = 0

x^{3} + 5 x^{2} + 2 x + 10 = 0

- x (6 x + 7) (x^{2} - 36) = 0

x^{5} + 125 x^{2} = 0

What are the solutions to the equation -x^3+2x^2-x-2=0 ?
The solutions to the equation -x^3+2x^2-x-2=0 are x\approx-0.69562…
Find the zeros of -x^3+2x^2-x-2=0
The zeros of -x^3+2x^2-x-2=0 are x\approx-0.69562…