What are the solutions to the equation u^2=81 ?

The solutions to the equation u^2=81 are u=9,u=-9

Find the zeros of u^2=81

The zeros of u^2=81 are u=9,u=-9

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u^{2} = 81

u = 9, u = - 9

Solution steps

u^{2} = 81

For

x^{2} = f (a)

the solutions are

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

u = 81, u = - 81

81 = 9

- 81 = - 9

u = 9, u = - 9

x^{2} - 16 x = - 60

4 b^{2} - 12 b + 9

x^{2} + 20 x + 96

3 x^{2} - 17 x - 6 = 0

8 x - 2 y

What are the solutions to the equation u^2=81 ?
The solutions to the equation u^2=81 are u=9,u=-9
Find the zeros of u^2=81
The zeros of u^2=81 are u=9,u=-9