Question

# How are Pascal’s triangle and binomial expansion such as (a + b)^{5} related?

Hint:

### Pascal's Triangle gives us the coefficients for an expanded binomial of the form (a + b)n , where n is the row of the triangle. The Binomial Theorem tells us we can use these coefficients to find the entire expanded binomial, with a couple extra tricks thrown in.

## The correct answer is: (x + y)n

Step 1 of 1:

Pascal's Triangle is a method to know the binomial coefficients of terms of binomial expression (x + y)^{n} , where n can be any positive integer and x, y are real numbers. Pascal Triangle is represented in a triangular form, it is kind of a number pattern in the form of a triangular arrangement.

The binomial expansion of (a + b)^{5} is:

Here, the coefficients of the expansions are the elements of the sixth row of the Pascal’s triangle.

Here, the coefficients of the expansions are the elements of the sixth row of the Pascal’s triangle.

You can find the expansion of (x + y)n using both Pascal’s triangle and binomial expansion.

### Related Questions to study

### Use binomial theorem to expand .

### Use binomial theorem to expand .

### Use polynomial identities to factor the polynomials or simplify the expressions :

### Use polynomial identities to factor the polynomials or simplify the expressions :

### Explain why the middle term is 10x.

In the Binomial Expansion's middle term, in the expansion of (a + b)n, there are (n + 1) terms. Therefore, we can write the middle term or terms of (a + b)n based on the value of n. It follows that there will only be one middle term if n is even and two middle terms if n is odd.

The binomial expansions of (x + y)n are used to find specific terms, such as the term independent of x or y.

Practice Questions

1. Find the expansion of (9x - 2y)12's coefficient of x5y7.

2. In the expansion of (2x - y)11, locate the 8th term.

### Explain why the middle term is 10x.

In the Binomial Expansion's middle term, in the expansion of (a + b)n, there are (n + 1) terms. Therefore, we can write the middle term or terms of (a + b)n based on the value of n. It follows that there will only be one middle term if n is even and two middle terms if n is odd.

The binomial expansions of (x + y)n are used to find specific terms, such as the term independent of x or y.

Practice Questions

1. Find the expansion of (9x - 2y)12's coefficient of x5y7.

2. In the expansion of (2x - y)11, locate the 8th term.

### Use binomial theorem to expand .

### Use binomial theorem to expand .

### Use polynomial identities to factor the polynomials or simplify the expressions :

### Use polynomial identities to factor the polynomials or simplify the expressions :

### How can you use polynomial identities to rewrite expressions efficiently ?

Polynomial identities are equations that are true for all possible values of the variable and numbers.

### How can you use polynomial identities to rewrite expressions efficiently ?

Polynomial identities are equations that are true for all possible values of the variable and numbers.

### Use binomial theorem to expand (2c + d)^{6}

The expansion of the expression can also be found using the Pascal’s triangle. But, it is necessary to remember the values of the triangle to write down the expansion.

### Use binomial theorem to expand (2c + d)^{6}

The expansion of the expression can also be found using the Pascal’s triangle. But, it is necessary to remember the values of the triangle to write down the expansion.

### Use binomial theorem to expand .

### Use binomial theorem to expand .

### Use binomial theorem to expand (x - 1)^{7}

For the expansion of an expression (x + y)n , we would have n+1 terms. This is something you need to keep in mind.

### Use binomial theorem to expand (x - 1)^{7}

For the expansion of an expression (x + y)n , we would have n+1 terms. This is something you need to keep in mind.

### Use polynomial identities to factor the polynomials or simplify the expressions :

### Use polynomial identities to factor the polynomials or simplify the expressions :

### Use Pascal triangle to expand

### Use Pascal triangle to expand

### Use binomial theorem to expand (s^{2} + 3)^{5}

For the expansion of an expression (x + y)n , we would have n+1 terms. This is something you need to keep in mind.