What are the solutions to the equation 18x^2-72=0 ?

The solutions to the equation 18x^2-72=0 are x=2,x=-2

Find the zeros of 18x^2-72=0

The zeros of 18x^2-72=0 are x=2,x=-2

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18 x^{2} - 72 = 0

x = 2, x = - 2

Solution steps

18 x^{2} - 72 = 0

Move

72

to the right side

18 x^{2} = 72

Divide both sides by

18

x^{2} = 4

For

x^{2} = f (a)

the solutions are

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

x = 4, x = - 4

4 = 2

- 4 = - 2

x = 2, x = - 2

x^{2} - 3 + 2 = 0

- x^{2} + 2 x - 7 = 0

x^{2} = 2 x^{2}

4 x (x + 6) = - 40

- 4 x^{2} + 5 x - 1 = 0

What are the solutions to the equation 18x^2-72=0 ?
The solutions to the equation 18x^2-72=0 are x=2,x=-2
Find the zeros of 18x^2-72=0
The zeros of 18x^2-72=0 are x=2,x=-2