What are the solutions to the equation completesquare 2x^2+8x-3=0 ?

The solutions to the equation completesquare 2x^2+8x-3=0 are x=sqrt(11/2)-2,x=-sqrt(11/2)-2

Find the zeros of completesquare 2x^2+8x-3=0

The zeros of completesquare 2x^2+8x-3=0 are x=sqrt(11/2)-2,x=-sqrt(11/2)-2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

2 x^{2} + 8 x - 3 = 0

x = \frac{11}{2} - 2, x = - \frac{11}{2} - 2

Decimal Notation

x = 0.34520 \dots, x = - 4.34520 \dots

Solution steps

2 x^{2} + 8 x - 3 = 0

Move

3

to the right side

2 x^{2} + 8 x = 3

Divide both sides by

2

\frac{2 x ^{2} + 8 x}{2} = \frac{3}{2}

x^{2} + 4 x = \frac{3}{2}

Rewrite in the form

(x + a)^{2} = b

(x + 2)^{2} = \frac{11}{2}

For

the solutions are

f (x) = a, - a

Solve

x + 2 = \frac{11}{2} : x = \frac{11}{2} - 2

Solve

x + 2 = - \frac{11}{2} : x = - \frac{11}{2} - 2

The solutions to the quadratic equation are:

x = \frac{11}{2} - 2, x = - \frac{11}{2} - 2

2 = 1 + x^{2}

5^{2} + b^{2} = 1 1^{2}

x^{2} - 100 x - 400 = 0

r^{2} - 3 r + \frac{9}{4} = 0

s^{2} - 4 s + 8

What are the solutions to the equation completesquare 2x^2+8x-3=0 ?
The solutions to the equation completesquare 2x^2+8x-3=0 are x=sqrt(11/2)-2,x=-sqrt(11/2)-2
Find the zeros of completesquare 2x^2+8x-3=0
The zeros of completesquare 2x^2+8x-3=0 are x=sqrt(11/2)-2,x=-sqrt(11/2)-2