en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify 4r^{-1}+3/r

Solution

simplify

4 r^{- 1} + \frac{3}{r}

Solution

\frac{7}{r}

Solution steps

4 r^{- 1} + \frac{3}{r}

Apply exponent rule:

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

r^{- 1} = \frac{1}{r}

= 4 \cdot \frac{1}{r} + \frac{3}{r}

Simplify

4 \cdot \frac{1}{r} : \frac{4}{r}

= \frac{4}{r} + \frac{3}{r}

Join

\frac{4}{r} + \frac{3}{r} : \frac{7}{r}

= \frac{7}{r}

Popular Examples

expand (u+v)(u-v)expand

(u + v) (u - v)

simplify log_{-2}(-8)simplify

lo g_{- 2} (- 8)

simplify 1/4+2/3-2/8 simplify

\frac{1}{4} + \frac{2}{3} - \frac{2}{8}

expand (3x+4)(2x-1)expand

(3 x + 4) (2 x - 1)

simplify (10!)/(1!(10-1)!)simplify

\frac{10 !}{1 ! ( 10 - 1 ) !}

Frequently Asked Questions (FAQ)

What is 4r^{-1}+3/r ?
The solution to 4r^{-1}+3/r is 7/r