Factorising Quadratics | Algebra | Maths | FuseSchool скачать в хорошем качестве

Factorising Quadratics | Algebra | Maths | FuseSchool

Factorising Quadratics | Algebra | Maths | FuseSchool In this video we’re going to discover how to factorise quadratics. Quadratics are expressions with x2 as the highest power. Expanding and factorising are opposites. Factorising means to put into brackets, and with quadratics it is usually 2 brackets (x + 2)(x - 3). Each bracket is a factor. Let's factorise x2 + 3x - 10. Start by putting down your two brackets, both with an ‘x’ at the front: (x )(x ). Now look at the number that is on it's own at the end: -10. What multiplies to give negative 10? 2 and 5, or 1 and 10. Which combination of those add to give the number in the middle: + 3? +5, -2. So put these into the brackets. (x + 5)(x - 2). And that is the quadratic factorised. It is really important to check yourself, so quickly expand your answer to double check you’ve factorised correctly. Quadratics that start as x-squared, so with no number in front of the x2 are called monic quadratics. Quadratics that have a coefficient in front of the x-squared, like 3x2 are called non-monic quadratics. They are a little harder to factorise. SUPPORT US ON PATREON   / fuseschool   SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. 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. Find all of our Chemistry videos here:    • CHEMISTRY   Find all of our Biology videos here:    • BIOLOGY   Find all of our Physics videos here:    • PHYSICS   Find all of our Maths videos here:    • MATHS   Instagram:   / fuseschool   Facebook:   / fuseschool   Twitter:   / fuseschool   Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org Follow us:    / fuseschool   Befriend us:   / fuseschool   This is an Open Educational Resource. If you would like to use the video, please contact us: info@fuseschool.org