Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.1 - Numerical and Algebraic Expressions - Concept Quiz 1.1 - Page 6: 1

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Work Step by Step

In algebra, variables placed beside each other with no separation are indicative of multiplication. Therefore, the expression $ab$ is actually the product of $a$ and $b$, or $a$ multiplied by $b$.