What are the solutions to the equation (x^2-81)=0 ?

The solutions to the equation (x^2-81)=0 are x=9,x=-9

Find the zeros of (x^2-81)=0

The zeros of (x^2-81)=0 are x=9,x=-9

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(x^{2} - 81) = 0

x = 9, x = - 9

Solution steps

(x^{2} - 81) = 0

x^{2} - 81 = 0

Move

81

to the right side

x^{2} = 81

For

x^{2} = f (a)

the solutions are

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

x = 81, x = - 81

81 = 9

- 81 = - 9

x = 9, x = - 9

2 (3 x + 5) + 2 (x - 5) = 2 (3 x + 5) (x - 5)

x^{2} + 9 x + 15 = 0

2 5^{2} - 7^{2} = x^{2}

X^{2} - 5 X + 4 = 0

L^{2} - 24 L + 32 = 0

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