What are the solutions to the equation 2x^2=2x+4 ?

The solutions to the equation 2x^2=2x+4 are x=2,x=-1

Find the zeros of 2x^2=2x+4

The zeros of 2x^2=2x+4 are x=2,x=-1

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

2 x^{2} = 2 x + 4

x = 2, x = - 1

Solution steps

2 x^{2} = 2 x + 4

Move

4

to the left side

2 x^{2} - 4 = 2 x

Move

2 x

to the left side

2 x^{2} - 4 - 2 x = 0

Write in the standard form

a x^{2} + b x + c = 0

2 x^{2} - 2 x - 4 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 2 ) \pm ( - 2 ) ^{2} - 4 \cdot 2 ( - 4 )}{2 \cdot 2}

(- 2)^{2} - 4 \cdot 2 (- 4) = 6

x_{1, 2} = \frac{- ( - 2 ) \pm 6}{2 \cdot 2}

Separate the solutions

x_{1} = \frac{- ( - 2 ) + 6}{2 \cdot 2}, x_{2} = \frac{- ( - 2 ) - 6}{2 \cdot 2}

x = \frac{- ( - 2 ) + 6}{2 \cdot 2} : 2

x = \frac{- ( - 2 ) - 6}{2 \cdot 2} : - 1

The solutions to the quadratic equation are:

x = 2, x = - 1

8 x + 8

1.2 n + 3.4 \leq 7.6

- 24 + 6 x = - 6

2^{- 10}

\frac{272 p ^{9}}{324 q ^{2}}

What are the solutions to the equation 2x^2=2x+4 ?
The solutions to the equation 2x^2=2x+4 are x=2,x=-1
Find the zeros of 2x^2=2x+4
The zeros of 2x^2=2x+4 are x=2,x=-1