What is expand (k-1)/((n+1-k)^2) ?

The solution to expand (k-1)/((n+1-k)^2) is (k-1)/(-2kn-2k+k^2+n^2+2n+1)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

expand (k-1)/((n+1-k)^2)

expand

\frac{k - 1}{( n + 1 - k ) ^{2}}

\frac{k - 1}{- 2 kn - 2 k + k ^{2} + n ^{2} + 2 n + 1}

Solution steps

\frac{k - 1}{( n + 1 - k ) ^{2}}

(n + 1 - k)^{2} = - 2 kn - 2 k + k^{2} + n^{2} + 2 n + 1

= \frac{k - 1}{( - 2 kn - 2 k + k ^{2} + n ^{2} + 2 n + 1 )}

Remove parentheses:

(- a) = - a

= \frac{k - 1}{- 2 kn - 2 k + k ^{2} + n ^{2} + 2 n + 1}

\frac{( 2 x + 1 ) ^{4}}{8}

\frac{10}{x ( x - 5 )}

\frac{( x ^{2} + 8 ) 2}{x ^{4}}

\frac{( x - 2 ) ( x + 8 )}{( x + 1 ) ( x - 1 )}

A (- 5, - 6) B (- 2, - 2)

What is expand (k-1)/((n+1-k)^2) ?
The solution to expand (k-1)/((n+1-k)^2) is (k-1)/(-2kn-2k+k^2+n^2+2n+1)