A lesson designed to get students to use the quadratic formula specifically where they don't have a calculator and must simplify their surd answers where necessary.
Extension task gets students to complete the square in order to solve the same questions. Completing the square is a pre-requisite (in terms of teaching how to find the turning point).
Extension task gets students to complete the square in order to solve the same questions. Completing the square is a pre-requisite (in terms of teaching how to find the turning point).
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