Click here to see more videos: https://alugha.com/FuseSchool Quadratics usually have an x-squared, an x term and a number on it’s own (known as a constant). There are a few different ways to solve quadratics: factorising, using the quadratic formula or by completing the square. In this video we look at solving by factorising. Solving just means to find values of x that satisfy the quadratic. Usually there will be 2 solutions, but sometimes there is just 1 and sometimes there are no solutions. The solutions are also known as roots. When we factorise, we usually end up with two brackets. E.g x^2 + 2x - 8 factorises to become (x + 4)(x - 2). To solve this factorised quadratic, we make each bracket equal to zero and solve the mini-equations from there. x + 4 = 0 and x - 2 = 0. Solve these and we get x = -4 and x = 2. Two different solutions (or roots). If we plotted this quadratic, these two roots are where the curve crosses the x-axis. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you. These videos can be used in a flipped classroom model or as a revision aid. Twitter: https://twitter.com/fuseSchool This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: info@fuseschool.org
Let’s discover some more circle theorems so that we can solve all types of geometrical puzzles. We discovered these 4 theorems in part 1: Angle at the centre is double the angle at the circumference The angle in a semi-circle is 90 degrees Angles in the same segment are equal / Angles subtended by
Click here to see more videos: https://alugha.com/FuseSchool If we don't have the vertical height of a triangle, then we can find the area of the triangle using 1/2absinC. In this video we are going to discover where this formula comes from. The formula is based on area = 1/2 base X height and a
Click here to see more videos: https://alugha.com/FuseSchool Learn the basics about the principles of green chemistry as a part of the environmental chemistry topic. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. This
