# Abridged multiplication formulas with examples. Task 1

Calculate:

For calculation we will use the algorithm of the abridged multiplication formulae.

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# Abridged multiplication formulas. Task 1

# Abridged multiplication formulas with examples. Task 1

**Step 1**

**Answer:**

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- Abridged multiplication formulas. Task 1

Calculate:

For calculation we will use the algorithm of the abridged multiplication formulae.

** **

At the first stage of the calculation it is necessary to try to find one (or several) abridged multiplication formulae.

It is evident that this expression is the square of the sum of two expressions where:

According to the formula: The square of a sum of two expressions is equal to the square of the first, plus twice the product of the first and second, plus the square of the second.

Then:

How to use the abridged multiplication formulas

Abridged multiplication formulas with examples (Tasks 12-22)

The use of the formula of the square of the difference for squaring large numbers

Table of the formulas of abridged multiplication

The square of a sum. Derivation of the formula

The square of a difference. Derivation of the formula

The difference of the squares. Derivation of the formula

The cube of the sum of two expressions. Derivation of the formula

The cube of the difference of two expressions. Derivation of the formula

The sum of the cubes of two expressions. Derivation of the formula

The difference of the cubes of two expressions. Derivation of the formula

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