Brian McLogan
Completing the square in three examples
👉 Learn how to complete the square to solve a quadratic equation. Completing the square is allows us to create a binomial squared so that we can solve using the square root method. Solving by completing the square is preferred when a...
FuseSchool
Solving Quadratics By Factorising
Quadratics using 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...
Brian McLogan
Multiplicity matters - Real zeros of polynomial functions
Multiplicity matters - Real zeros of polynomial functions
Brian McLogan
What is a quadratic function
👉 Learn the essentials for graphing a quadratic equation. A quadratic equation is an equation of the form y = ax^2 + bx + c, where a, b and c are constants. The graph of a quadratic equation is in the shape of a parabola which can either...
FuseSchool
Completing The Square - Quadratics
Completing The Square - Quadratics | Algebra | Maths | FuseSchool Completing the square is another way of solving quadratics (as well as by factorising and by using the quadratic formula). Completing the square will always work, whatever...
KnowMo
Solving Quadratics: Factorizing and Using the Quadratic Formula
This video explains how to solve quadratic equations either by factorizing or by using the quadratic formula. The instructor first describes how to factorize a quadratic equation using the sum and product method to convert it into double...
Brian McLogan
Solving a quadratic by completing the square
👉 Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with...
Brian McLogan
Completing the square with fractions to find the vertex
👉 Learn how to identify the vertex of a parabola by completing the square. A parabola is the shape of the graph of a quadratic equation. A quadratic equation can be written in the standard form (i.e. in the form y = ax^2 + bx + c) or it...
Brian McLogan
Identifying the transformations of a quadratic by completing the square
👉 Learn how to identify the vertex of a parabola by completing the square. A parabola is the shape of the graph of a quadratic equation. A quadratic equation can be written in the standard form (i.e. in the form y = ax^2 + bx + c) or it...
Brian McLogan
Soft sound solving quadratics by completing the square
👉 Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with...
FuseSchool
Completing The Square - Plotting Quadratics
Completing The Square - Plotting Quadratics | Algebra | Maths | FuseSchool Completing the square is another way of solving quadratics (as well as by factorising and by using the quadratic formula). Completing the square will always work,...
Brian McLogan
What are the key characteristics of a quadratic equation
👉 Learn the essentials for graphing a quadratic equation. A quadratic equation is an equation of the form y = ax^2 + bx + c, where a, b and c are constants. The graph of a quadratic equation is in the shape of a parabola which can either...
Brian McLogan
Summary for characteristics of a quadratic in vertex form
👉 Learn how to graph a quadratic equation in vertex form by applying transformations such as horizontal/vertical shift, horizontal/vertical compression stretch and reflections. If the equation is not in vertex form, then we will apply...
Brian McLogan
What is factoring
👉Learn the basics of factoring quadratics by using different techniques. Some of the techniques used in factoring quadratics include: when the coefficient of the squared term is not 1. In that case, we first write the quadratic in...
Brian McLogan
Finding the axis of symmetry for a parabola and graph
👉 Learn the basics to understanding graphing quadratics. A quadratic equation is an equation whose highest exponent in the variable(s) is 2. To graph a quadratic equation, we make use of a table of values and the fact that the graph of a...
KnowMo
Factorizing Quadratics: Sum of Products, Multiple Axes, and Difference of Squares
The video explains the process of factorizing quadratics in algebra. The presenter starts by explaining the form of quadratic equations and the goal of factorizing them. They then introduce the sum of product rule and explain how to find...
FuseSchool
MATHS - Algebra - Quadratic Formula - Solving Quadratics
Quadratics can be solved in different ways: factorising, quadratic formula or by completing the square. In this video we are going to look at how to use the quadratic formula to solve quadratics. Quadratics can’t always be factorised,...
Khan Academy
More Examples of Factoring Quadratics with a Leading Coefficient of 1, Algebra II
Focusing on the intuitive nature of algebra and factoring, Sal demonstrates how to factor quadratic equations efficiently. This video would be great to show in class after a lecture on quadratics or to assign in a computer lab (or...
Khan Academy
SAT Prep: Test 5 Section 7 Part 3
The most helpful part of this video is at the very end, when Sal demonstrates how to solve a combinations problem incorrectly (after initially finding the correct answer). The trial-and-error strategy of solving multiple-choice math...
Khan Academy
SAT Prep: Test 3 Section 4 Part 2
Sal explains how helping his young cousins with their math skills inspired him to make this series of videos, so he can help a bunch of people pass the SAT. In this video, he covers exponents, quadratics, and parabolas in problems 5-9 on...
Khan Academy
SAT Prep: Test 1 Section 6 Part 1
Here, Sal begins section 6 on page 407 of The Official SAT Study Guide, focusing on problems 1-4 in this video. He clarifies that SAT questions are "tricky, but really fast" problems that shouldn't take a lot of time to solve. To prove...
Curated OER
SAT Prep: Test 3 Section 4 Part 5
The last part of problem 18 is the focus of this short video. Sal picks up where he left off, factoring the end of the linear equation, and reminding students to view his video on factoring if they are still confused.
Curated OER
Graphing Quadratic Functions - Algebra Help
This clip covers a lot of ground and is perfect for those needing a little extra help remembering how to graph a quadratic function. It begins with a multi-step problem which requires the learner to graph a quadratic function, set up a...
Khan Academy
Khan Academy: Graphing a Quadratic Function
Demonstrates how to graph a quadratic function by creating a table of values. This video also appears in the Algebra: Functions strand. [6:03]