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1 By factorizing it

2 By sketching it on the Cartesian plane

3 By finding the difference of two squares

4 By completing the square

5 By using the quadratic equation formula

6 By finding its discriminant to see if it has any solutions at all

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* Trial and error - only works in the simplest of cases* Factoring - if the polynomial is easy to factor

* Completing the square - this always works, but it's easier if there is no "a" term (for the equation of the form ax^2 + bx + c = 0), and the "b" term is even

* The quadratic equation - this is the most general method, which always works.

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Q: What are at least four ways in how to solve a quadratic equation?
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