What are Algebraic Expressions? ALGEBRA

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Just like how we use words and phrases to write sentences in English, we use “Algebraic Expressions” to write equations and inequalities in math.

In this video, we talk about different kinds of algebraic expressions. Some of them are quite simple, while others are more complicated. How do you know something is an algebraic expression? Look for a grouping of numbers and letters, along with an operation (plus, minus, multiplication, division, etc.).

Algebraic expressions are made up of terms (a variable, its coefficient, and a constant). We see several examples of expressions, and see how they are “recipes” for computation. We evaluate these expressions and make up tables of inputs and outputs, to get comfortable using these expressions. Some of these examples have 1, 2, or 3 variables, and some even involve imaginary numbers/complex numbers.

⏩ 𝙅𝙪𝙢𝙥 𝙩𝙤 𝙩𝙝𝙚𝙨𝙚 𝙨𝙚𝙘𝙩𝙞𝙤𝙣𝙨 𝙞𝙣 𝙩𝙝𝙚 𝙫𝙞𝙙𝙚𝙤:
0:00 Introduction & Example 1
4:02 Example 2
6:36 Example 3
8:30 Example 4 (funny example)
9:00 Example 5
10:50 Quick recap

📖 𝙑𝙊𝘾𝘼𝘽𝙐𝙇𝘼𝙍𝙔 𝙏𝙀𝙍𝙈𝙎 𝙞𝙣 𝙩𝙝𝙞𝙨 𝙫𝙞𝙙𝙚𝙤:
Variable
Algebraic expression
Evaluate at
Input/output
Value
Undefined
Complex number
Imaginary number

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𝘾𝙧𝙚𝙙𝙞𝙩𝙨:
Instructor: Michael Lee Harrison
Produced by Michael Lee Harrison and Kimberly Hatch Harrison
Edited by Megi Shuke

Musical Theme: High Thread Count by Aardverk (HKZFCQPBLJ6IAZGJ)

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