Readers ask: How To Expand In Math?

What is expansion formula?

The binomial expansion formula is, (x+y)n = xn + nxn1y + n(n−1)2!

What does it mean to expand math?

” Expanding ” means removing the ( ) but we have to do it the right way! ( ) are called “parentheses” or “brackets” Whatever is inside the ( ) needs to be treated as a “package”. So when multiplying: multiply by everything inside the “package”.

How do you expand a binomial expansion?

To get started, you need to identify the two terms from your binomial (the x and y positions of our formula above) and the power (n) you are expanding the binomial to. For example, to expand (2x-3)³, the two terms are 2x and -3 and the power, or n value, is 3.

How do you expand a number?

We know that the number written as sum of the place-values of its digits is called the expanded form of a number. In expanded form of a number, the number is shown according to the place values of its digits. Thus, 2000 + 300 + 80 + 5 is the expanded form of 2385.

What expand mean?

transitive verb. 1: to open up: unfold. 2: to increase the extent, number, volume, or scope of: enlarge. 3a: to express at length or in greater detail.

How do you simplify?

To simplify any algebraic expression, the following are the basic rules and steps:

  1. Remove any grouping symbol such as brackets and parentheses by multiplying factors.
  2. Use the exponent rule to remove grouping if the terms are containing exponents.
  3. Combine the like terms by addition or subtraction.
  4. Combine the constants.
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How do you combine like terms step by step?

When you combine like terms, be sure to use the + or – that is in front of the coefficient, or number in before the letter. So in this case, we will add the 3, 5 and 9 that is in front of the x terms. Then we will subtract 7 and 4 that is in front of the y terms.

How do you simplify equations?

Here are the basic steps to follow to simplify an algebraic expression:

  1. remove parentheses by multiplying factors.
  2. use exponent rules to remove parentheses in terms with exponents.
  3. combine like terms by adding coefficients.
  4. combine the constants.

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