What is the answer to sqrt(x^2-4x-5)=2x-10 ?

The answer to sqrt(x^2-4x-5)=2x-10 is x=5,x=7

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

sqrt(x^2-4x-5)=2x-10

x^{2} - 4 x - 5 = 2 x - 10

x = 5, x = 7

Solution steps

x^{2} - 4 x - 5 = 2 x - 10

Square both sides:

x^{2} - 4 x - 5 = 4 x^{2} - 40 x + 100

x^{2} - 4 x - 5 = 4 x^{2} - 40 x + 100

Solve

x^{2} - 4 x - 5 = 4 x^{2} - 40 x + 100 : x = 5, x = 7

x = 5, x = 7

Verify Solutions:

x = 5

True

, x = 7

True

The solutions are

x = 5, x = 7

2 y + 1 + y - 2 y + 1 - y = 2

x - 6 x^{\frac{1}{2}} + 4 = - 5

y, x = - 3 - 3 2 - 2 y + y^{2}

(x - 2)^{2} = 4

2 2 x = 4

What is the answer to sqrt(x^2-4x-5)=2x-10 ?
The answer to sqrt(x^2-4x-5)=2x-10 is x=5,x=7
Solve for x: sqrt(x^2-4x-5)=2x-10
The solution is x=5,x=7