en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

2x=sqrt(20+2x)

Solution

2 x = 20 + 2 x

Solution

x = \frac{5}{2}

+1

Decimal Notation

x = 2.5

Solution steps

2 x = 20 + 2 x

Square both sides:

4 x^{2} = 20 + 2 x

4 x^{2} = 20 + 2 x

Solve

4 x^{2} = 20 + 2 x : x = \frac{5}{2}, x = - 2

x = \frac{5}{2}, x = - 2

Verify Solutions:

x = \frac{5}{2}

True

, x = - 2

False

The solution is

x = \frac{5}{2}

Popular Examples

(x - 3)^{\frac{2}{3}} = 25

(4x+1)^{1/3}=-8

(4 x + 1)^{\frac{1}{3}} = - 8

9sqrt(b^{3-1)}=81

9 b^{3 - 1} = 81

\sqrt[3]{x^2-3x-5}=0

\sqrt[4]{15x-9}+2=5

Frequently Asked Questions (FAQ)

What is the answer to 2x=sqrt(20+2x) ?
The answer to 2x=sqrt(20+2x) is x= 5/2
Solve for x: 2x=sqrt(20+2x)
The solution is x= 5/2