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A/(3+x) + B/(1-x) + C/(2x+1) = (9x^2 + 43x + 8)/(3+x)(1-x)(2x+1)So... A(1-x)(2x+1) + B(3+x)(2x+1) + C(3+x)(1-x) = (9x^2 + 43x + 8)Insert x=1Equation becomes 12B = 60 so B = 5.Then insert x=-3Equation beco...

Its important when writing an essay to always make sure your points are fully explained and evidenced. The best way to remember to do this is to use the PEEL system. PEEL stands for Point, Evidence, Exp...

The perfect and imperfect tenses in latin are both used to describe actions which take place in the past, but they are used to describe slightly different types of actions.
The perfect is used to d...

Shop 1. Ladder is discounted at 30%. 30% = 0.3. 0.3 x £75 = ? £70 x 0.3 = £21.00 £5 x 0.3 = £1.50. Total discount is £22.50. Price for the ladder is £52.50. Shop 2. The discount can be calculated £75/1 x ...

The anode is the positive electrode so attracts negative ions. At the anode, negative ions lose electrons (they are oxidised).The resulting product depends on the ionic substance but is non-metal and is o...