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

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

Find the zeros of x^2-21=0

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

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x^{2} - 21 = 0

x = 21, x = - 21

Decimal Notation

x = 4.58257 \dots, x = - 4.58257 \dots

Solution steps

x^{2} - 21 = 0

Move

21

to the right side

x^{2} = 21

For

x^{2} = f (a)

the solutions are

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

x = 21, x = - 21

e^{2 \cdot 0}

2 ∣ 4 + t ∣ - 2 \geq 12

(5 k^{2} m)^{3} [(4 k m^{4})^{2}]^{2}

- 9 x < 27

- \frac{1}{2} = \frac{3}{2} k + \frac{3}{2}

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