Show that 𝑥=−2 is a possible solution of 𝑥^2+9𝑥+14=0
Identify a possible formal method to solve quadratic equations without linear terms in 𝑥,
Use simple factorization as a method to solve quadratic equations
Expand/multiply out double set of brackets
Factorise quadratic expressions as a strategy to solve a quadratic equation (foundation)
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