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

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

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

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

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Popular >

7 x^{2} - 21 = 0

x = 3, x = - 3

Decimal Notation

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

Solution steps

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

(- 32)^{\frac{2}{5}}

- 6 x = - 24

\frac{5 x - 11}{3} = x

y^{3} - y^{2} - y > - 1

\frac{π}{\frac{1}{3}}

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