What are the solutions to the equation 5s^3+7s+6.4=0 ?

The solutions to the equation 5s^3+7s+6.4=0 are s\approx-0.68485…

Find the zeros of 5s^3+7s+6.4=0

The zeros of 5s^3+7s+6.4=0 are s\approx-0.68485…

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5 s^{3} + 7 s + 6.4 = 0

s \approx - 0.68485 \dots

Solution steps

5 s^{3} + 7 s + 6.4 = 0

Multiply both sides by

10

50 s^{3} + 70 s + 64 = 0

Find one solution for

50 s^{3} + 70 s + 64 = 0

using Newton-Raphson:

s \approx - 0.68485 \dots

Apply long division:

\frac{50 s ^{3} + 70 s + 64}{s + 0.68485 \dots} = 50 s^{2} - 34.24253 \dots s + 93.45102 \dots

50 s^{2} - 34.24253 \dots s + 93.45102 \dots \approx 0

Find one solution for

50 s^{2} - 34.24253 \dots s + 93.45102 \dots = 0

using Newton-Raphson:

No Solution for

s \in R

The solution is

s \approx - 0.68485 \dots

a^{4} = 10 a^{2}

2 (x^{2} - 2 x)^{2} - 5 (x^{2} - 2 x) = 7

z^{6} + z + 1 = 0

(x - 3) (x + 1)^{2} (x^{2} - 4 x + 13) = 0

4 y^{3} - 2 y + 5 = 0

What are the solutions to the equation 5s^3+7s+6.4=0 ?
The solutions to the equation 5s^3+7s+6.4=0 are s\approx-0.68485…
Find the zeros of 5s^3+7s+6.4=0
The zeros of 5s^3+7s+6.4=0 are s\approx-0.68485…