What are the solutions to the equation -x^3-3=4x+27 ?

The solutions to the equation -x^3-3=4x+27 are x\approx-2.68121…

Find the zeros of -x^3-3=4x+27

The zeros of -x^3-3=4x+27 are x\approx-2.68121…

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Popular >

- x^{3} - 3 = 4 x + 27

x \approx - 2.68121 \dots

Solution steps

- x^{3} - 3 = 4 x + 27

Move

27

to the left side

- x^{3} - 30 = 4 x

Move

4 x

to the left side

- x^{3} - 30 - 4 x = 0

Write in the standard form

a_{n} x^{n} + \dots + a_{1} x + a_{0} = 0

- x^{3} - 4 x - 30 = 0

Find one solution for

- x^{3} - 4 x - 30 = 0

using Newton-Raphson:

x \approx - 2.68121 \dots

Apply long division:

\frac{- x ^{3} - 4 x - 30}{x + 2.68121 \dots} = - x^{2} + 2.68121 \dots x - 11.18893 \dots

- x^{2} + 2.68121 \dots x - 11.18893 \dots \approx 0

Find one solution for

- x^{2} + 2.68121 \dots x - 11.18893 \dots = 0

using Newton-Raphson:

No Solution for

x \in R

The solution is

x \approx - 2.68121 \dots

x^{7} - 8 = 0

x^{4} + 2 x^{2} - 48 = 0

3 z^{3} - 2 z^{2} + 2 z + 1 = 0

u^{4} - 5 u^{2} + 6 = 0

8 x^{3} - 12 x^{2} - 24 x = 0

What are the solutions to the equation -x^3-3=4x+27 ?
The solutions to the equation -x^3-3=4x+27 are x\approx-2.68121…
Find the zeros of -x^3-3=4x+27
The zeros of -x^3-3=4x+27 are x\approx-2.68121…