The Quadratic Formula

It's only fair to share...Share on FacebookTweet about this on TwitterPin on PinterestShare on Google+Share on RedditEmail this to someone

A quadratic equation is an equation of the form ax² + bx + c = 0, where a . we can solve equations of this form by identifying a, b and c and substituting them into the formulato find .
Example: Solve 


Then or 

It is very important to get the correct values of ,, and . For the following equations the values are given

Notice that if a minus sign appears in the formula we have to solve then that value of or  will be negative.

Then for the first equation 

We may also solve quadratic equations by sketching a quadratic graph or by completing the square.

Example:Solve

Thenor 

Comments are closed.