Completing the Square (Grade 11 NSC Matric Mathematics): Flashcards
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Practise the cards
10 cards from this deck
Purpose of completing the square
Purpose of completing the square
Solve quadratics that can't be easily factorised
Why 'completing the square' name
Why 'completing the square' name
Creating perfect square trinomial by adding missing term
Use when factorisation is...
Use when factorisation is...
Difficult or impossible
Step 2: Coefficient of
Step 2: Coefficient of
Make it equal to 1
Step 3: Half and square rule
Step 3: Half and square rule
Half coefficient of , then square it
Step 4 in method
Step 4 in method
Write trinomial as perfect square
Method 1 after completing square
Method 1 after completing square
Take square root of both sides, use
Must include when taking square roots
Must include when taking square roots
sign for positive and negative solutions
Solution types possible
Solution types possible
Rational or irrational
Result from both solution methods
Result from both solution methods
Same solutions