What are the solutions to the equation 81-y^2=0 ?

The solutions to the equation 81-y^2=0 are y=9,y=-9

Find the zeros of 81-y^2=0

The zeros of 81-y^2=0 are y=9,y=-9

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81 - y^{2} = 0

y = 9, y = - 9

Solution steps

81 - y^{2} = 0

Move

81

to the right side

- y^{2} = - 81

Divide both sides by

- 1

y^{2} = 81

For

x^{2} = f (a)

the solutions are

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

y = 81, y = - 81

81 = 9

- 81 = - 9

y = 9, y = - 9

3 y^{2} - 36 y + 81 = 0

4 x^{2} = - 3 (2 x)

w^{2} - 4 w - 5 = 0

s^{2} + 5 s + 1 = 0

y - \frac{y ^{2}}{2} = 0

What are the solutions to the equation 81-y^2=0 ?
The solutions to the equation 81-y^2=0 are y=9,y=-9
Find the zeros of 81-y^2=0
The zeros of 81-y^2=0 are y=9,y=-9