What is expand (k(2k+1))/6+(k+1) ?

The solution to expand (k(2k+1))/6+(k+1) is (k^2)/3+k/6+k+1

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

expand (k(2k+1))/6+(k+1)

expand

\frac{k ( 2 k + 1 )}{6} + (k + 1)

\frac{k ^{2}}{3} + \frac{k}{6} + k + 1

Solution steps

\frac{k ( 2 k + 1 )}{6} + (k + 1)

Remove parentheses:

(a) = a

= \frac{k ( 2 k + 1 )}{6} + k + 1

Expand

k (2 k + 1) : 2 k^{2} + k

= \frac{2 k ^{2} + k}{6} + k + 1

Apply the fraction rule:

\frac{a \pm b}{c} = \frac{a}{c} \pm \frac{b}{c}

\frac{2 k ^{2} + k}{6} = \frac{2 k ^{2}}{6} + \frac{k}{6}

= \frac{2 k ^{2}}{6} + \frac{k}{6} + k + 1

Cancel

\frac{2 k ^{2}}{6} : \frac{k ^{2}}{3}

= \frac{k ^{2}}{3} + \frac{k}{6} + k + 1

9 (5 x - 2 y = - 6)

\frac{d}{d y} ((x) (x y^{2} + g (y)))

3 x + x - 9

- (x - 5) (x + 3)

\frac{( x - 2 ) ( x + 4 )}{( x - 1 ) ( x - 4 )}

What is expand (k(2k+1))/6+(k+1) ?
The solution to expand (k(2k+1))/6+(k+1) is (k^2)/3+k/6+k+1