What are the solutions to the equation x^3+2x^2+4x-8=0 ?

The solutions to the equation x^3+2x^2+4x-8=0 are x\approx 1.08737…

Find the zeros of x^3+2x^2+4x-8=0

The zeros of x^3+2x^2+4x-8=0 are x\approx 1.08737…

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

x \approx 1.08737 \dots

Solution steps

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

Find one solution for

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

using Newton-Raphson:

x \approx 1.08737 \dots

Apply long division:

\frac{x ^{3} + 2 x ^{2} + 4 x - 8}{x - 1.08737 \dots} = x^{2} + 3.08737 \dots x + 7.35714 \dots

x^{2} + 3.08737 \dots x + 7.35714 \dots \approx 0

Find one solution for

x^{2} + 3.08737 \dots x + 7.35714 \dots = 0

using Newton-Raphson:

No Solution for

x \in R

The solution is

x \approx 1.08737 \dots

445 = 5 x^{3}

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

t^{3} - 13 t^{2} + 65 t - 105 = 0

2 x^{3} - 3 x^{2} + 32 x + 17 = 0

x^{2} (x - 8) = 0

What are the solutions to the equation x^3+2x^2+4x-8=0 ?
The solutions to the equation x^3+2x^2+4x-8=0 are x\approx 1.08737…
Find the zeros of x^3+2x^2+4x-8=0
The zeros of x^3+2x^2+4x-8=0 are x\approx 1.08737…