# Simplifying Algebraic Expression: A(Ls)

• nesan
In summary, the person is not using any formulas to simplify the line. They are simply rearranging the brackets in the term (L - 2*Ls)*Ls*sin(beta).
nesan

## Homework Statement

Sorry, not really a homework question, just practicing for a test online.

Can someone explain how this person simplified this line.

## Homework Equations

A(Ls) = (L - 2*Ls)*Ls*sin(beta) + Ls*sin(beta)*Ls*cos(beta)

becomes

A(Ls) = sin(beta)*[cos(beta) - 2]*Ls^2 + L*sin(beta)*Ls

**INFO**

Lb = L - 2*Ls
h = Ls * sin(beta)
w = Ls * cos(beta)
A = Lb * h + 2 * 1/2 * h * w

Thank you, would be great help. :)

He doesn't use any formulas at all. The only thing he is doing is changing the place of the brackets.

Hint: Start with eliminating the brackets in the term (L - 2*Ls)*Ls*sin(beta).

## What is an algebraic expression?

An algebraic expression is a mathematical phrase that contains letters, numbers, and mathematical operations. These letters, called variables, represent unknown quantities and the operations determine how they are related to each other.

## Why is it important to simplify algebraic expressions?

Simplifying algebraic expressions allows us to make them easier to work with and understand. It also helps us to identify patterns and relationships between different expressions, which can lead to solving more complicated equations.

## What are the steps involved in simplifying an algebraic expression?

The steps for simplifying an algebraic expression involve combining like terms, using the distributive property, and simplifying any parentheses or exponents. It is also important to follow the proper order of operations, which is PEMDAS (parentheses, exponents, multiplication/division, addition/subtraction).

## What is the difference between simplifying and solving an algebraic expression?

Simplifying an algebraic expression involves simplifying it as much as possible using the given information and operations. Solving an algebraic expression, on the other hand, involves finding the solution or value of the variables in the expression by using various methods such as substitution or elimination.

## How can I practice simplifying algebraic expressions?

One way to practice simplifying algebraic expressions is by using worksheets or online practice exercises. You can also create your own algebraic expressions and simplify them or find real-world problems that can be represented with an algebraic expression and simplify them. Working with a tutor or joining a study group can also be helpful in practicing and improving your skills.

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