What are the solutions to the equation x^3+2x^2-21x+35=0 ?

The solutions to the equation x^3+2x^2-21x+35=0 are x\approx-6.25328…

Find the zeros of x^3+2x^2-21x+35=0

The zeros of x^3+2x^2-21x+35=0 are x\approx-6.25328…

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x^{3} + 2 x^{2} - 21 x + 35 = 0

x \approx - 6.25328 \dots

Solution steps

x^{3} + 2 x^{2} - 21 x + 35 = 0

Find one solution for

x^{3} + 2 x^{2} - 21 x + 35 = 0

using Newton-Raphson:

x \approx - 6.25328 \dots

Apply long division:

\frac{x ^{3} + 2 x ^{2} - 21 x + 35}{x + 6.25328 \dots} = x^{2} - 4.25328 \dots x + 5.59705 \dots

x^{2} - 4.25328 \dots x + 5.59705 \dots \approx 0

Find one solution for

x^{2} - 4.25328 \dots x + 5.59705 \dots = 0

using Newton-Raphson:

No Solution for

x \in R

The solution is

x \approx - 6.25328 \dots

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

7 x^{3} = 5 x^{2}

z^{5} = 2 - 2 i

Z^{3} + 4 = 5 + i

x^{6} - 10 x^{3} + 24 = 0

What are the solutions to the equation x^3+2x^2-21x+35=0 ?
The solutions to the equation x^3+2x^2-21x+35=0 are x\approx-6.25328…
Find the zeros of x^3+2x^2-21x+35=0
The zeros of x^3+2x^2-21x+35=0 are x\approx-6.25328…