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 .
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