# Cancel fractions

Compress the expression of factorial:

(n+6)!/(n+4)!-n!/(n-2)!

(n+6)!/(n+4)!-n!/(n-2)!

**Result****Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):**

**Showing 0 comments:**

**Be the first to comment!**

#### To solve this example are needed these knowledge from mathematics:

## Next similar examples:

- Tournament

Determine how many ways can be chosen two representatives from 34 students to school tournament. - Committees

How many different committees of 6 people can be formed from a class of 30 students? - Elections

In elections candidate 10 political parties. Calculate how many possible ways can the elections finish, if any two parties will not get the same number of votes. - The confectionery

The confectionery sold 5 kinds of ice cream. In how many ways can I buy 3 kinds if order of ice creams does not matter? - Teams

How many ways can divide 16 players into two teams of 8 member? - Trinity

How many different triads can be selected from the group 43 students? - Fish tank

A fish tank at a pet store has 8 zebra fish. In how many different ways can George choose 2 zebra fish to buy? - Examination

The class is 21 students. How many ways can choose two to examination? - Confectionery

The village markets have 5 kinds of sweets, one weighs 31 grams. How many different ways a customer can buy 1.519 kg sweets. - Volleyball

8 girls wants to play volleyball against boys. On the field at one time can be six players per team. How many initial teams of this girls may trainer to choose? - MATES

In MATES (Small Television tipping) from 35 randomly numbers drawn 5 winning numbers. How many possible combinations there is? - Chords

How many 4-tones chords (chord = at the same time sounding different tones) is possible to play within 7 tones? - Blocks

There are 9 interactive basic building blocks of an organization. How many two-blocks combinations are there? - Calculation of CN

Calculate: ? - Balls

The urn is 8 white and 6 black balls. We pull 4 randomly balls. What is the probability that among them will be two white? - Weekly service

In the class are 20 pupils. How many opportunities have the teacher if he wants choose two pupils randomly who will weeklies? - Theorem prove

We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?