For tips on how to do this, look at Factorising quadratics and Factorisation of further quadratics in this guide. For (\({x}\) + 2)(\({x}\) + 7) to equal 0 either the first or second bracket must be ...
This is a preview. Log in through your library . Abstract The concept of instability of representation, which has developed from observing pupils who experience difficulties whilst performing complex ...
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