Factor ((x+1)^(2n)+4(x+1)^(2n+1)+6(x+1)^6-11)/(x(x+2))

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 {(x + 1)}^{6} - 11}{x (x + 2)}$

Use the Binomial Theorem.

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 (x^{6} + 6 x^{5} \cdot 1 + 15 x^{4} \cdot 1^{2} + 20 x^{3} \cdot 1^{3} + 15 x^{2} \cdot 1^{4} + 6 x \cdot 1^{5} + 1^{6}) - 11}{x (x + 2)}$

Simplify each term.

Multiply $6$ by $1$ .

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 (x^{6} + 6 x^{5} + 15 x^{4} \cdot 1^{2} + 20 x^{3} \cdot 1^{3} + 15 x^{2} \cdot 1^{4} + 6 x \cdot 1^{5} + 1^{6}) - 11}{x (x + 2)}$

One to any power is one.

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 (x^{6} + 6 x^{5} + 15 x^{4} \cdot 1 + 20 x^{3} \cdot 1^{3} + 15 x^{2} \cdot 1^{4} + 6 x \cdot 1^{5} + 1^{6}) - 11}{x (x + 2)}$

Multiply $15$ by $1$ .

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 (x^{6} + 6 x^{5} + 15 x^{4} + 20 x^{3} \cdot 1^{3} + 15 x^{2} \cdot 1^{4} + 6 x \cdot 1^{5} + 1^{6}) - 11}{x (x + 2)}$

One to any power is one.

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 (x^{6} + 6 x^{5} + 15 x^{4} + 20 x^{3} \cdot 1 + 15 x^{2} \cdot 1^{4} + 6 x \cdot 1^{5} + 1^{6}) - 11}{x (x + 2)}$

Multiply $20$ by $1$ .

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 (x^{6} + 6 x^{5} + 15 x^{4} + 20 x^{3} + 15 x^{2} \cdot 1^{4} + 6 x \cdot 1^{5} + 1^{6}) - 11}{x (x + 2)}$

One to any power is one.

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 (x^{6} + 6 x^{5} + 15 x^{4} + 20 x^{3} + 15 x^{2} \cdot 1 + 6 x \cdot 1^{5} + 1^{6}) - 11}{x (x + 2)}$

Multiply $15$ by $1$ .

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 (x^{6} + 6 x^{5} + 15 x^{4} + 20 x^{3} + 15 x^{2} + 6 x \cdot 1^{5} + 1^{6}) - 11}{x (x + 2)}$

One to any power is one.

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 (x^{6} + 6 x^{5} + 15 x^{4} + 20 x^{3} + 15 x^{2} + 6 x \cdot 1 + 1^{6}) - 11}{x (x + 2)}$

Multiply $6$ by $1$ .

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 (x^{6} + 6 x^{5} + 15 x^{4} + 20 x^{3} + 15 x^{2} + 6 x + 1^{6}) - 11}{x (x + 2)}$

One to any power is one.

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 (x^{6} + 6 x^{5} + 15 x^{4} + 20 x^{3} + 15 x^{2} + 6 x + 1) - 11}{x (x + 2)}$

Apply the distributive property.

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 x^{6} + 6 (6 x^{5}) + 6 (15 x^{4}) + 6 (20 x^{3}) + 6 (15 x^{2}) + 6 (6 x) + 6 \cdot 1 - 11}{x (x + 2)}$

Simplify.

Multiply $6$ by $6$ .

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 x^{6} + 36 x^{5} + 6 (15 x^{4}) + 6 (20 x^{3}) + 6 (15 x^{2}) + 6 (6 x) + 6 \cdot 1 - 11}{x (x + 2)}$

Multiply $15$ by $6$ .

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 x^{6} + 36 x^{5} + 90 x^{4} + 6 (20 x^{3}) + 6 (15 x^{2}) + 6 (6 x) + 6 \cdot 1 - 11}{x (x + 2)}$

Multiply $20$ by $6$ .

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 x^{6} + 36 x^{5} + 90 x^{4} + 120 x^{3} + 6 (15 x^{2}) + 6 (6 x) + 6 \cdot 1 - 11}{x (x + 2)}$

Multiply $15$ by $6$ .

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 x^{6} + 36 x^{5} + 90 x^{4} + 120 x^{3} + 90 x^{2} + 6 (6 x) + 6 \cdot 1 - 11}{x (x + 2)}$

Multiply $6$ by $6$ .

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 x^{6} + 36 x^{5} + 90 x^{4} + 120 x^{3} + 90 x^{2} + 36 x + 6 \cdot 1 - 11}{x (x + 2)}$

Multiply $6$ by $1$ .

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 x^{6} + 36 x^{5} + 90 x^{4} + 120 x^{3} + 90 x^{2} + 36 x + 6 - 11}{x (x + 2)}$

Subtract $11$ from $6$ .

$\frac{{(x + 1)}^{2 n} + 4 {(x + 1)}^{2 n + 1} + 6 x^{6} + 36 x^{5} + 90 x^{4} + 120 x^{3} + 90 x^{2} + 36 x - 5}{x (x + 2)}$

Factor ((x+1)^(2n)+4(x+1)^(2n+1)+6(x+1)^6-11)/(x(x+2))

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