expressions contain 𝑥² and can be factorised into two brackets. Watch this video to find out how to factorise quadratics, when the 𝑥² coefficient is 1 using the FOIL and grid methods.

Factorising an expression means finding the factors that multiply together to give that expression. For \(\mathbf{x^2 + 5x + 6}\), the first step is to find two numbers whose sum is 5 and whose ...