What is the answer to sqrt(x-3)\times sqrt(2x+2)=x+1 ?

The answer to sqrt(x-3)\times sqrt(2x+2)=x+1 is x=7

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

sqrt(x-3)\times sqrt(2x+2)=x+1

x - 3 \cdot 2 x + 2 = x + 1

x = 7

Solution steps

x - 3 2 x + 2 = x + 1

Square both sides:

2 x^{2} - 4 x - 6 = x^{2} + 2 x + 1

2 x^{2} - 4 x - 6 = x^{2} + 2 x + 1

Solve

2 x^{2} - 4 x - 6 = x^{2} + 2 x + 1 : x = 7, x = - 1

x = 7, x = - 1

Verify Solutions:

x = 7

True

, x = - 1

False

The solution is

x = 7

9 x + 2 = x + 12

y = \frac{y + 2}{5 - y}

5 x + 14 - x = 8

40 x = 5 x + 3

What is the answer to sqrt(x-3)\times sqrt(2x+2)=x+1 ?
The answer to sqrt(x-3)\times sqrt(2x+2)=x+1 is x=7
Solve for x: sqrt(x-3)\times sqrt(2x+2)=x+1
The solution is x=7