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.

Sometimes we have to form quadratic equations to help us solve problems. Dave has a box which has one side of length (\({x}\) – 3) and another side of length (\({x}\) + 2). Find an expression fo ...