What are the solutions to the equation 21-3x^2=0 ?

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

Find the zeros of 21-3x^2=0

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

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21 - 3 x^{2} = 0

x = 7, x = - 7

Decimal Notation

x = 2.64575 \dots, x = - 2.64575 \dots

Solution steps

21 - 3 x^{2} = 0

Move

21

to the right side

- 3 x^{2} = - 21

Divide both sides by

- 3

x^{2} = 7

For

x^{2} = f (a)

the solutions are

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

x = 7, x = - 7

2 x^{2} - 8 x - 10 = x + 8

4 x^{2} - 16 x + 17

y, 5 x^{2} - 2 x y + 2 y^{2} - 2 y - 71 = 0

- 2 x^{2} + 6 x - 1 = 0

8 x^{2} - 9 x + 1 = 0

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