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You need to be familiar with factorisations of special expressions such as x2 - y2.
The other method to do this is by simultaneous equations involving one quadratic expression, which is much more tedious, and you probably have not learnt the technique of solving such simultaneous equations yet.
The other method to do this is by simultaneous equations involving one quadratic expression, which is much more tedious, and you probably have not learnt the technique of solving such simultaneous equations yet.
Date Posted:
5 years ago