What are the solutions to the equation 4s^2-81=0 ?

The solutions to the equation 4s^2-81=0 are s= 9/2 ,s=-9/2

Find the zeros of 4s^2-81=0

The zeros of 4s^2-81=0 are s= 9/2 ,s=-9/2

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4 s^{2} - 81 = 0

s = \frac{9}{2}, s = - \frac{9}{2}

Solution steps

4 s^{2} - 81 = 0

Move

81

to the right side

4 s^{2} = 81

Divide both sides by

4

s^{2} = \frac{81}{4}

For

x^{2} = f (a)

the solutions are

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

s = \frac{81}{4}, s = - \frac{81}{4}

\frac{81}{4} = \frac{9}{2}

- \frac{81}{4} = - \frac{9}{2}

s = \frac{9}{2}, s = - \frac{9}{2}

6 x^{2} - 48 x = 0

- 16 t^{2} + 48 t + 160 = 160

r (r + 4) = 0

2 (x^{2} - 2 x) = 5

x^{2} - 13 + 40 = 0

What are the solutions to the equation 4s^2-81=0 ?
The solutions to the equation 4s^2-81=0 are s= 9/2 ,s=-9/2
Find the zeros of 4s^2-81=0
The zeros of 4s^2-81=0 are s= 9/2 ,s=-9/2