What is the answer to sqrt(x^2-x-4)=x+2 ?

The answer to sqrt(x^2-x-4)=x+2 is x=-8/5

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

sqrt(x^2-x-4)=x+2

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

x = - \frac{8}{5}

Decimal Notation

x = - 1.6

Solution steps

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

Square both sides:

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

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

Solve

x^{2} - x - 4 = x^{2} + 4 x + 4 : x = - \frac{8}{5}

x = - \frac{8}{5}

Verify Solutions:

x = - \frac{8}{5}

True

The solution is

x = - \frac{8}{5}

(12 - x)^{\frac{1}{2}} = 36 - a

2 x + 5 - 1 = x

8 x + 1 = 5

3 x - 5 - x + 7 = 2

x = x - 6

What is the answer to sqrt(x^2-x-4)=x+2 ?
The answer to sqrt(x^2-x-4)=x+2 is x=-8/5
Solve for x: sqrt(x^2-x-4)=x+2
The solution is x=-8/5