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NSW Y8 Maths

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NSW Y8 Maths Algebra Algebraic Expressions

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Algebraic Expressions Theory

\begin{multicols}{2} \textbf{Example 1}\\ If \(x,y\) and \(z\) represent any three numbers, write an algebraic expression for the product of \(x\) and \(y\), increased by five times \(z\).\\ \textbf{Example 1 solution}\\ Product of \(x\) and \(y\) is \(x y\)\\ \(\therefore \text { Expression }=x y+5 z\) \columnbreak \textbf{Example 2}\\ Write an expression for the amount of change Billy receives if he buys 4 bananas costing \(\$ b\) each with \(\$ a\) in cash.\\ \textbf{Example 2 solution}\\ \(\begin{aligned} \text { Total cost of bananas } & =4 b \\ \text { change } & =a-4 b \end{aligned}\) \end{multicols}

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Videos relating to Algebraic Expressions.

  • Algebraic Expressions - Video - Factorising Expressions - Example 1

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