Solving quadratic equations (OCR GCSE Maths): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What makes an equation a quadratic equation?
What makes an equation a quadratic equation?
Highest power is a square
How many solutions should you get when solving quadratic equations?
How many solutions should you get when solving quadratic equations?
Two
Why do quadratic equations give two solutions?
Why do quadratic equations give two solutions?
Squaring +ve & -ve gives same value
What is the first step when solving by factorising?
What is the first step when solving by factorising?
Rearrange equation to equal zero
When is factorising described as the best method to use?
When is factorising described as the best method to use?
Often easiest & quickest if possible
What form must a quadratic be in to use the formula ?
What form must a quadratic be in to use the formula ?
In , what does a negative discriminant indicate?
In , what does a negative discriminant indicate?
No real solutions
For , what are the values of and ?
For , what are the values of and ?
,
When completing the square, what must you do if the coefficient of is NOT 1?
When completing the square, what must you do if the coefficient of is NOT 1?
Factor it out first
Using completing the square, equals which expression?
Using completing the square, equals which expression?
What should you remember when taking square roots while completing the square?
What should you remember when taking square roots while completing the square?
Consider both +ve & -ve roots
What calculator tip is given to ensure accuracy with the quadratic formula?
What calculator tip is given to ensure accuracy with the quadratic formula?
Always use brackets around -ve numbers