What are the solutions to the equation 81x^2-36=0 ?

The solutions to the equation 81x^2-36=0 are x= 2/3 ,x=-2/3

Find the zeros of 81x^2-36=0

The zeros of 81x^2-36=0 are x= 2/3 ,x=-2/3

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81 x^{2} - 36 = 0

x = \frac{2}{3}, x = - \frac{2}{3}

Decimal Notation

x = 0.66666 \dots, x = - 0.66666 \dots

Solution steps

81 x^{2} - 36 = 0

Move

36

to the right side

81 x^{2} = 36

Divide both sides by

81

x^{2} = \frac{4}{9}

For

x^{2} = f (a)

the solutions are

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

x = \frac{4}{9}, x = - \frac{4}{9}

\frac{4}{9} = \frac{2}{3}

- \frac{4}{9} = - \frac{2}{3}

x = \frac{2}{3}, x = - \frac{2}{3}

\frac{x}{3 x - 5} \leq \frac{2}{x - 1}

0 = 8 x^{2} - 800

\frac{y}{6} - 3 = - 11

2 x - 4 + 5 x - 3 \geq 8

\frac{3}{4} a > - 16

What are the solutions to the equation 81x^2-36=0 ?
The solutions to the equation 81x^2-36=0 are x= 2/3 ,x=-2/3
Find the zeros of 81x^2-36=0
The zeros of 81x^2-36=0 are x= 2/3 ,x=-2/3