What are the solutions to the equation 4x^3+12x^2+90x+40=0 ?

The solutions to the equation 4x^3+12x^2+90x+40=0 are x\approx-0.46920…

Find the zeros of 4x^3+12x^2+90x+40=0

The zeros of 4x^3+12x^2+90x+40=0 are x\approx-0.46920…

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

4 x^{3} + 12 x^{2} + 90 x + 40 = 0

x \approx - 0.46920 \dots

Solution steps

4 x^{3} + 12 x^{2} + 90 x + 40 = 0

Find one solution for

4 x^{3} + 12 x^{2} + 90 x + 40 = 0

using Newton-Raphson:

x \approx - 0.46920 \dots

Apply long division:

\frac{4 x ^{3} + 12 x ^{2} + 90 x + 40}{x + 0.46920 \dots} = 4 x^{2} + 10.12317 \dots x + 85.25013 \dots

4 x^{2} + 10.12317 \dots x + 85.25013 \dots \approx 0

Find one solution for

4 x^{2} + 10.12317 \dots x + 85.25013 \dots = 0

using Newton-Raphson:

No Solution for

x \in R

The solution is

x \approx - 0.46920 \dots

y^{3} = - 3 y^{4}

16 x^{4} - 121 x^{2} = 0

- x^{4} + 4 x^{3} - 18 x^{2} + 16 x + 8 = 0

x (x + 1) (x + 2) (x + 3) = 46 1^{2} - 1

3 x^{3} - 2 x^{2} - 21 x + 14 = 0

What are the solutions to the equation 4x^3+12x^2+90x+40=0 ?
The solutions to the equation 4x^3+12x^2+90x+40=0 are x\approx-0.46920…
Find the zeros of 4x^3+12x^2+90x+40=0
The zeros of 4x^3+12x^2+90x+40=0 are x\approx-0.46920…