Topic Content:
- Variables & Coefficients of Algebraic Expressions
In Mathematics, a variable is a quantity that can change. Letters are used to represent these changing, unknown quantities in arithmetic, 4 × 2 is a short way of writing 4 + 4.
Similarly, in algebraAlgebra is a branch of mathematics that substitutes letters for numbers. Algebra is about finding the unknown or putting real-life variables into equations and then solving them. More, 5 × a is a short form for \( \scriptsize a \: + \: a \: + \: a \: + \: a \: + \: a \)
We usually shorten \(\scriptsize 5 \: \times \: a \: to \: 5a\)
\( \scriptsize 5a \\ \scriptsize= 5 \: \times \: a \\ \scriptsize = a \: + \: a \: + \: a \: + \: a \: + \: a \)
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