What are the solutions to the equation 81x^2=64 ?

The solutions to the equation 81x^2=64 are x= 8/9 ,x=-8/9

Find the zeros of 81x^2=64

The zeros of 81x^2=64 are x= 8/9 ,x=-8/9

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81 x^{2} = 64

x = \frac{8}{9}, x = - \frac{8}{9}

Decimal Notation

x = 0.88888 \dots, x = - 0.88888 \dots

Solution steps

81 x^{2} = 64

Divide both sides by

81

x^{2} = \frac{64}{81}

For

x^{2} = f (a)

the solutions are

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

x = \frac{64}{81}, x = - \frac{64}{81}

\frac{64}{81} = \frac{8}{9}

- \frac{64}{81} = - \frac{8}{9}

x = \frac{8}{9}, x = - \frac{8}{9}

x^{2} + 9 x - 400 = 0

8 (3 x - 7)^{2} + 2 (3 x - 7) - 45 = 0

6 x^{2} = - 9 x

0 = 3 x^{2} + 10 x + 3

8 = - 3 n^{2} + 10 n

What are the solutions to the equation 81x^2=64 ?
The solutions to the equation 81x^2=64 are x= 8/9 ,x=-8/9
Find the zeros of 81x^2=64
The zeros of 81x^2=64 are x= 8/9 ,x=-8/9