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

The answer to sqrt(2-x)=-2x+1 is x=-1/4

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

sqrt(2-x)=-2x+1

2 - x = - 2 x + 1

x = - \frac{1}{4}

Decimal

x = - 0.25

Solution steps

2 - x = - 2 x + 1

Square both sides:

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

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

Solve

2 - x = 4 x^{2} - 4 x + 1 : x = 1, x = - \frac{1}{4}

x = 1, x = - \frac{1}{4}

Verify Solutions:

x = 1

False

, x = - \frac{1}{4}

True

The solution is

x = - \frac{1}{4}

F, q = F d + 4

2 u^{\frac{2}{3}} + 7 u^{\frac{1}{3}} = 4

x, \frac{u}{u ^{2} + 1} = x

x + 2 = 2 x + 7

x + 1 + 1 = 0