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

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

Find the zeros of 21=7x^2

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

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21 = 7 x^{2}

x = 3, x = - 3

Decimal Notation

x = 1.73205 \dots, x = - 1.73205 \dots

Solution steps

21 = 7 x^{2}

Switch sides

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

x, x^{2} - x y + y^{3} = 4

4 v^{2} - 5 v - 1 = 4 v

(m - 2) x^{2} - (m + 5) x + 8 = 0

3 t^{2} = 12 + 5 t

(x - 36)^{2} = 0

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