What are the solutions to the equation 0=7x^2+21 ?

The solutions to the equation 0=7x^2+21 are x=sqrt(3)i,x=-sqrt(3)i

Find the zeros of 0=7x^2+21

The zeros of 0=7x^2+21 are x=sqrt(3)i,x=-sqrt(3)i

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

0 = 7 x^{2} + 21

x = 3 i, x = - 3 i

Solution steps

0 = 7 x^{2} + 21

Switch sides

7 x^{2} + 21 = 0

Move

21

to the right side

7 x^{2} = - 21

Divide both sides by

7

x^{2} = - 3

For

x^{2} = f (a)

the solutions are

x = f (a), - f (a)

x = - 3, x = - - 3

- 3 = 3 i

- - 3 = - 3 i

x = 3 i, x = - 3 i

x^{2} + 6 x + 8 = 2

3 (x + 2)^{2} + 4 = 13

x, 9 x^{2} + 6 y^{2} + 4 x y - y + 2 = 0

y, z = y x^{6} - 3 x + 8 x^{2} y^{2} - y^{2}

2 x^{2} - 4 x - 10 = 0

What are the solutions to the equation 0=7x^2+21 ?
The solutions to the equation 0=7x^2+21 are x=sqrt(3)i,x=-sqrt(3)i
Find the zeros of 0=7x^2+21
The zeros of 0=7x^2+21 are x=sqrt(3)i,x=-sqrt(3)i