GCSE AQA Surds - AQA Multiplying and dividing surds Surds are numbers left in square root form that are used when detailed accuracy is required in a calculation. They are numbers which, when written ...
\[\color{#a31500}{a^m} \times \color{#009828}{a^n} = a^{\color{#a31500}{m}+\color{#009828}{n}},.\] This is because \begin{align} \color{#a31500}{ a^m }&= \underbrace ...
Colin Foster looks at the different ways in which surds can be combined – some of which can be difficult for students to make sense of… Students may need calculators to be sure. Three of the ...
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