Over 250 interactive and dynamic lessons covering all the important Algebra topics to get you into college quickly. Casio Scientific Calculator If YouTube is blocked at your school you can access the videos using this link. Z216z61 2z 20 z 2 16 z 61 2 z 20 Solution.
The quadratic formula for a quadratic.
Maths revision video and notes on the topic of solving quadratic equations by factorising. Solve an equation of the form a x 2 b x c 0 by using the quadratic formula. You will need to learn this formula as well as understand how to use it. Quadratic equations can be factorised rapidly with this cool fast math trick.