What are the solutions to the equation 81=a^2 ?

The solutions to the equation 81=a^2 are a=9,a=-9

Find the zeros of 81=a^2

The zeros of 81=a^2 are a=9,a=-9

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

81 = a^{2}

a = 9, a = - 9

Solution steps

81 = a^{2}

Switch sides

a^{2} = 81

For

x^{2} = f (a)

the solutions are

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

a = 81, a = - 81

81 = 9

- 81 = - 9

a = 9, a = - 9

2 x^{2} + 8 = 4

2 x^{2} - x - 3 = 0

\frac{4}{5} - 2

\frac{2 ( x + h ) - 2 x}{h}

\frac{7 x - 6}{2} = 5 x + 5

What are the solutions to the equation 81=a^2 ?
The solutions to the equation 81=a^2 are a=9,a=-9
Find the zeros of 81=a^2
The zeros of 81=a^2 are a=9,a=-9