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Home
Math
Pre-Calculus
L
The Quadratic Formula
Quadratic Formula
The solutions of the quadratic equation ax^2 + bx + c = 0 where a not= 0 are given by
You can use this formula for any quadratic equation
But be careful, not all quadratic equations have a solution
Checklist
Equation is in the form ax^2 + bx + c = 0
Write down your values of a.b and c before you substitute
Use brackets when you are substituting negative numbers
Show what you have substituted in the formula
Simplify what is under the square root and write this down
The +- symbol means you need to do two calculations
Working it out
You are asked to find solutions
This tells you that you are solving a quadratic equation
You must give your answer correct to the certain amount
Write down at least 5 figures after the decimal point on the calculator display before giving your final answer
You might need to use the S-D button on your calculator to get the answer as a decimal
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Explore Top Notes
Chapter 3: The History of the Atom and Periodic Table
Note
Studied by 27 people
5.0
(1)
American Pageant Chapter 16 APUSH Review
Note
Studied by 72 people
5.0
(1)
Animation storyboard
Note
Studied by 4 people
5.0
(2)
Chapter 10 - Productivity and Pay
Note
Studied by 4 people
5.0
(1)
Chapter 24 - Myths about Markets
Note
Studied by 8 people
5.0
(1)
Distal Biceps Tendon Tear
Note
Studied by 9 people
5.0
(1)