What are the solutions to the equation x^2-4x=-11 ?

The solutions to the equation x^2-4x=-11 are x=2+sqrt(7)i,x=2-sqrt(7)i

Find the zeros of x^2-4x=-11

The zeros of x^2-4x=-11 are x=2+sqrt(7)i,x=2-sqrt(7)i

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x^{2} - 4 x = - 11

x = 2 + 7 i, x = 2 - 7 i

Solution steps

x^{2} - 4 x = - 11

Move

11

to the left side

x^{2} - 4 x + 11 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 4 ) \pm ( - 4 ) ^{2} - 4 \cdot 1 \cdot 11}{2 \cdot 1}

Simplify

(- 4)^{2} - 4 \cdot 1 \cdot 11 : 27 i

x_{1, 2} = \frac{- ( - 4 ) \pm 2 7 i}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- ( - 4 ) + 2 7 i}{2 \cdot 1}, x_{2} = \frac{- ( - 4 ) - 2 7 i}{2 \cdot 1}

x = \frac{- ( - 4 ) + 2 7 i}{2 \cdot 1} : 2 + 7 i

x = \frac{- ( - 4 ) - 2 7 i}{2 \cdot 1} : 2 - 7 i

The solutions to the quadratic equation are:

x = 2 + 7 i, x = 2 - 7 i

c^{2} - 1 c

1 2^{2} + b^{2} = 2 0^{2}

x + 5 > 7

(\frac{2}{3}) (\frac{9}{5}) (\frac{5}{4})

∣ 3 x - 4 ∣ < 8

What are the solutions to the equation x^2-4x=-11 ?
The solutions to the equation x^2-4x=-11 are x=2+sqrt(7)i,x=2-sqrt(7)i
Find the zeros of x^2-4x=-11
The zeros of x^2-4x=-11 are x=2+sqrt(7)i,x=2-sqrt(7)i