What are the solutions to the equation x^2+1.4x+1=0 ?

The solutions to the equation x^2+1.4x+1=0 are x=-7/10+i(sqrt(51))/(10),x=-7/10-i(sqrt(51))/(10)

Find the zeros of x^2+1.4x+1=0

The zeros of x^2+1.4x+1=0 are x=-7/10+i(sqrt(51))/(10),x=-7/10-i(sqrt(51))/(10)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x^{2} + 1.4 x + 1 = 0

x = - \frac{7}{10} + i \frac{51}{10}, x = - \frac{7}{10} - i \frac{51}{10}

Solution steps

x^{2} + 1.4 x + 1 = 0

Multiply both sides by

10

10 x^{2} + 14 x + 10 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 14 \pm 1 4 ^{2} - 4 \cdot 10 \cdot 10}{2 \cdot 10}

Simplify

1 4^{2} - 4 \cdot 10 \cdot 10 : 251 i

x_{1, 2} = \frac{- 14 \pm 2 51 i}{2 \cdot 10}

Separate the solutions

x_{1} = \frac{- 14 + 2 51 i}{2 \cdot 10}, x_{2} = \frac{- 14 - 2 51 i}{2 \cdot 10}

x = \frac{- 14 + 2 51 i}{2 \cdot 10} : - \frac{7}{10} + i \frac{51}{10}

x = \frac{- 14 - 2 51 i}{2 \cdot 10} : - \frac{7}{10} - i \frac{51}{10}

The solutions to the quadratic equation are:

x = - \frac{7}{10} + i \frac{51}{10}, x = - \frac{7}{10} - i \frac{51}{10}

10000 x^{2} - 64 = 0

x, x^{2} - 8 x + 41 = 0

x, \frac{8 x - 2 y}{2 y + 3} = 2 x^{2} - 1

6 x^{2} = 5 x + 4

4 v^{2} = - 20 v - 25

What are the solutions to the equation x^2+1.4x+1=0 ?
The solutions to the equation x^2+1.4x+1=0 are x=-7/10+i(sqrt(51))/(10),x=-7/10-i(sqrt(51))/(10)
Find the zeros of x^2+1.4x+1=0
The zeros of x^2+1.4x+1=0 are x=-7/10+i(sqrt(51))/(10),x=-7/10-i(sqrt(51))/(10)