What is the coefficient in the term 3x23x^23x2?
An exponential term axa^xax (where a>0a > 0a>0) is always positive.
To simplify a fractional power like amna^{\frac{m}{n}}anm, you take the nnnth root and the mmmth power.
am+na^{m+n}am+n
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Flashcards for Edexcel A Level Maths Algebraic Expressions, covering the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3. 20 cards drawn from 1.1 Index Laws, 1.2 Expanding Brackets, 1.3 Factorising, 1.4 Negative and Fractional Indices, and 1.5 Surds, matched to the Edexcel A Level Maths (9MA0) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.
