What are the solutions to the equation 2x^3-x^2-8x-15=0 ?

The solutions to the equation 2x^3-x^2-8x-15=0 are x\approx 2.83922…

Find the zeros of 2x^3-x^2-8x-15=0

The zeros of 2x^3-x^2-8x-15=0 are x\approx 2.83922…

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2 x^{3} - x^{2} - 8 x - 15 = 0

x \approx 2.83922 \dots

Solution steps

2 x^{3} - x^{2} - 8 x - 15 = 0

Find one solution for

2 x^{3} - x^{2} - 8 x - 15 = 0

using Newton-Raphson:

x \approx 2.83922 \dots

Apply long division:

\frac{2 x ^{3} - x ^{2} - 8 x - 15}{x - 2.83922 \dots} = 2 x^{2} + 4.67844 \dots x + 5.28313 \dots

2 x^{2} + 4.67844 \dots x + 5.28313 \dots \approx 0

Find one solution for

2 x^{2} + 4.67844 \dots x + 5.28313 \dots = 0

using Newton-Raphson:

No Solution for

x \in R

The solution is

x \approx 2.83922 \dots

x, x^{3} = \frac{m ^{3}}{4}

x^{3} - x^{2} - 10 x - 8 = 0

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

x^{3} - 19 x - 30 = 0

z^{3} + 8 = 0

What are the solutions to the equation 2x^3-x^2-8x-15=0 ?
The solutions to the equation 2x^3-x^2-8x-15=0 are x\approx 2.83922…
Find the zeros of 2x^3-x^2-8x-15=0
The zeros of 2x^3-x^2-8x-15=0 are x\approx 2.83922…