In a quadratic expression, the highest power of \(x\) is \(x^2\). Factorise \(x^2 + 7x + 10\). To factorise this expression, find two numbers that have a product of +10 and a sum of +7. There are four ...
Sometimes we have quadratic equations of the form \({x^2}\) - a, in other words there is no term in \({x}\). Factorising these expressions is very straightforward if ...
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