Quadratic equations can be solved by various methods.
Method 1 Factorisation
Method 2 Completion of the Square
Method 3 Quadratic Formula
Hints for Solving
Hint 1
Always make the right hand side (RHS) equal zero.
Hint 2
Arrange in descending order if this is not already done.
Hint 3
When asked to solve the equation correct to two decimal places, this is another way of saying:
USE the quadratic formula!
Hint 4
In solving a quadratic equation, use factorisation first.
If this seems a bit difficult, then use either the quadratic formula or completion of the square.
NOTE If you are asked to solve using a particular method, you must use that method, or else you will score zero!
When preparing for an examination, you must be skilled in using any of the 3 methods.