What are the solutions to the equation -2x^3+2x^2-8x+7=0 ?

The solutions to the equation -2x^3+2x^2-8x+7=0 are x\approx 0.89589…

Find the zeros of -2x^3+2x^2-8x+7=0

The zeros of -2x^3+2x^2-8x+7=0 are x\approx 0.89589…

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- 2 x^{3} + 2 x^{2} - 8 x + 7 = 0

x \approx 0.89589 \dots

Solution steps

- 2 x^{3} + 2 x^{2} - 8 x + 7 = 0

Find one solution for

- 2 x^{3} + 2 x^{2} - 8 x + 7 = 0

using Newton-Raphson:

x \approx 0.89589 \dots

Apply long division:

\frac{- 2 x ^{3} + 2 x ^{2} - 8 x + 7}{x - 0.89589 \dots} = - 2 x^{2} + 0.20821 \dots x - 7.81345 \dots

- 2 x^{2} + 0.20821 \dots x - 7.81345 \dots \approx 0

Find one solution for

- 2 x^{2} + 0.20821 \dots x - 7.81345 \dots = 0

using Newton-Raphson:

No Solution for

x \in R

The solution is

x \approx 0.89589 \dots

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

x, 9 y = x^{3}

3 (x^{2} - 81) (64 x^{2} - 25) = 0

- x (x + 9) (x^{2} - 9) = 0

27 x^{3} + 27 x^{2} + 9 x + 1 = 0

What are the solutions to the equation -2x^3+2x^2-8x+7=0 ?
The solutions to the equation -2x^3+2x^2-8x+7=0 are x\approx 0.89589…
Find the zeros of -2x^3+2x^2-8x+7=0
The zeros of -2x^3+2x^2-8x+7=0 are x\approx 0.89589…