en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify 3*9^{-2}

Solution

simplify

3 \cdot 9^{- 2}

Solution

\frac{1}{27}

+1

Decimal Notation

0.03703 \dots

Solution steps

3 \cdot 9^{- 2}

Apply exponent rule:

a^{- b} = \frac{1}{a ^{b}}

9^{- 2} = \frac{1}{9 ^{2}}

= 3 \cdot \frac{1}{9 ^{2}}

9^{2} = 81

= 3 \cdot \frac{1}{81}

3 \cdot \frac{1}{81} = \frac{1}{27}

= \frac{1}{27}

Popular Examples

factor (x+7)^2-3^2 factor

(x + 7)^{2} - 3^{2}

simplify 8x^2+8-6 simplify

8 x^{2} + 8 - 6

factor 1+x^7 factor

1 + x^{7}

simplify 3/(2-1)simplify

\frac{3}{2 - 1}

simplify sqrt(25b)-sqrt(b^3)simplify

25 b - b^{3}

Frequently Asked Questions (FAQ)

What is 3*9^{-2} ?
The solution to 3*9^{-2} is 1/27