What are the solutions to the equation x^2+3x+18=0 ?

The solutions to the equation x^2+3x+18=0 are x=-3/2+i(3sqrt(7))/2 ,x=-3/2-i(3sqrt(7))/2

Find the zeros of x^2+3x+18=0

The zeros of x^2+3x+18=0 are x=-3/2+i(3sqrt(7))/2 ,x=-3/2-i(3sqrt(7))/2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x^{2} + 3 x + 18 = 0

x = - \frac{3}{2} + i \frac{3 7}{2}, x = - \frac{3}{2} - i \frac{3 7}{2}

Solution steps

x^{2} + 3 x + 18 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 3 \pm 3 ^{2} - 4 \cdot 1 \cdot 18}{2 \cdot 1}

Simplify

3^{2} - 4 \cdot 1 \cdot 18 : 37 i

x_{1, 2} = \frac{- 3 \pm 3 7 i}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- 3 + 3 7 i}{2 \cdot 1}, x_{2} = \frac{- 3 - 3 7 i}{2 \cdot 1}

x = \frac{- 3 + 3 7 i}{2 \cdot 1} : - \frac{3}{2} + i \frac{3 7}{2}

x = \frac{- 3 - 3 7 i}{2 \cdot 1} : - \frac{3}{2} - i \frac{3 7}{2}

The solutions to the quadratic equation are:

x = - \frac{3}{2} + i \frac{3 7}{2}, x = - \frac{3}{2} - i \frac{3 7}{2}

\frac{x + 2}{x - 10} > 4

3 + 2 i (- 1 + i) - (5 - 4 i)

x^{5} + 5 x^{4} + x^{3} - 21 x^{2} - 18 x

∣ 4 x + 3 ∣ + 4 = 8

- 3.6 (3) + 14.4

What are the solutions to the equation x^2+3x+18=0 ?
The solutions to the equation x^2+3x+18=0 are x=-3/2+i(3sqrt(7))/2 ,x=-3/2-i(3sqrt(7))/2
Find the zeros of x^2+3x+18=0
The zeros of x^2+3x+18=0 are x=-3/2+i(3sqrt(7))/2 ,x=-3/2-i(3sqrt(7))/2