What are the solutions to the equation 81x^2=25 ?

The solutions to the equation 81x^2=25 are x= 5/9 ,x=-5/9

Find the zeros of 81x^2=25

The zeros of 81x^2=25 are x= 5/9 ,x=-5/9

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

81 x^{2} = 25

x = \frac{5}{9}, x = - \frac{5}{9}

Decimal Notation

x = 0.55555 \dots, x = - 0.55555 \dots

Solution steps

81 x^{2} = 25

Divide both sides by

81

x^{2} = \frac{25}{81}

For

x^{2} = f (a)

the solutions are

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

x = \frac{25}{81}, x = - \frac{25}{81}

\frac{25}{81} = \frac{5}{9}

- \frac{25}{81} = - \frac{5}{9}

x = \frac{5}{9}, x = - \frac{5}{9}

2 x^{5} - 9 x^{4} + 12 x^{3} - 4 x^{2} - 8 x + 4

3 x^{2} + 5 x - 9 = 0

8 = x^{2} - 8 x - 15

- 16 t^{2} + 50 t = 0

4 x^{2} - 200 = - 20

What are the solutions to the equation 81x^2=25 ?
The solutions to the equation 81x^2=25 are x= 5/9 ,x=-5/9
Find the zeros of 81x^2=25
The zeros of 81x^2=25 are x= 5/9 ,x=-5/9