Algebra is one of the broad parts of mathematics, together with number theory, geometry and analysis. In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols; it is a unifying thread of almost all of mathematics.

Table of Contents

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• Welcome to Algebra (0:00)
• Numbers (natural, integer, rational, real, complex) (3:35)
• Associative property of addition and multiplication (10:04)
• Commutative property of addition and multiplication (11:52)
• Cancelling fractions (15:02)
• Multiplying fractions (21:35)
• Subtraction (25:34)
• Factoring a cubic polynomial (32:40)

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