How do you solve trig equations that have something squared in them? In this video I show how to use a U-substitution to rewrite trigonometric equations as quadratics, which makes them easier to solve. We use the unit circle to solve...

This is the second of two videos on solving systems of equations using the substitution method.

This video examines the basics of how to solve linear equations, and tell if your equation has one, zero, or infinite solutions.

In this video, we will solve systems of equations word problems involving acid, alcohol, and mixtures. These problems involve mixtures of pure water and pure acid.

Welcome to our complete high school mathematics tutorial series! Whether you’re a student preparing for exams, a teacher seeking additional resources, or a parent helping your child succeed in math, these videos cover a wide range of...

Welcome to our complete high school mathematics tutorial series! Whether you’re a student preparing for exams, a teacher seeking additional resources, or a parent helping your child succeed in math, these videos cover a wide range of...

Welcome to our complete high school mathematics tutorial series! Whether you’re a student preparing for exams, a teacher seeking additional resources, or a parent helping your child succeed in math, these videos cover a wide range of...

Welcome to our complete high school mathematics tutorial series! Whether you’re a student preparing for exams, a teacher seeking additional resources, or a parent helping your child succeed in math, these videos cover a wide range of...

In this math video we will solve a quadratic equation using the Zero Product Property. We will understand that the given equation is a quadratic equation in factored form equal to zero. We will learn that the Zero Product Property states...

In this math video we will find the error in student work solving a linear equation. We will clear parentheses by using the distributive property. Since there are variables on both side of the equation, we will use inverse operations and...

In this math video we will learn 5 steps to divide fractions. We will first understand that the quotient is the answer or solution when you divide. We will review the five steps one by one. Then, I will model how to use the procedural...

In this math video we will identify an equivalent expression using the distributive property. We will identify each term of the given algebraic expression. We will review that the first step to simplifying will be to clear the...

In this math video we will learn the 7 steps to solve a linear equation. We will begin by reviewing each step for understanding. Then, we will perform each of the 7 steps by solving a linear equation. An exemplar problem and solution are...

Osmosis is the movement of water across a semipermeable membrane from a region of lower solute concentration to higher concentration. Tonicity refers to how an extracellular solution affects a cell’s water content, described as...

Polyacrylamide gel electrophoresis (PAGE) uses a gel matrix formed by polymerizing acrylamide and bis-acrylamide through free radicals generated by TEMED and APS. This exothermic polymerization forms linear chains cross-linked into a 3D...

A gradient gel features a continuous change in acrylamide concentration (e.g., from 5% to 25%), resulting in decreasing pore size from top to bottom. This allows separation of a broader range of protein molecular weights and improved...

In this video, we’ll break down how to solve and graph inequalities step by step! From basic examples to a real-world scenario about a cave explorer, you’ll learn how to confidently tackle these math problems and check your answers for...

In this video, we’re diving into *one-step inequalities* using multiplication and division! You’ll learn: ✅ How to solve one-step inequalities step by step. ✅ How to graph solutions on a number line. ✅ How to apply these skills to a...

Whether you're just starting out, or need a quick refresher, this is the video for you! Mrs. C will go show you step-by-step how to subtract these mixed numbers.

Whether you're just starting out, or need a quick refresher, this is the video for you! Mrs. C will go show you step-by-step how to factor an algebraic expression, using different methods and several examples.

n this video, Math Defined with Mrs. C explains the concept with a step-by-step example: -x + 10 is less than 4. Watch as she demonstrates two different methods to solve the inequality—one using addition and subtraction, and the other...

In this video, I’ll walk you step-by-step through solving and graphing an inequality with fractions. 🚨 Warning: There’s a common mistake many students make when graphing solutions, and I’ll show you how to avoid it! Plus, I’ll explain...

In this video, Mrs. C breaks down how to solve and graph inequalities using addition and subtraction in a way that’s simple and easy to follow! 🌟 You’ll learn step-by-step how to: ✅ Solve inequalities like x - 3 greater than -7 and w + 6...

Join Mrs. C in today’s lesson as we dive into solving *two-step algebraic equations* with ease! Whether you’re working with integers, decimals, or negatives, we’ll break each problem into simple, manageable steps so you can master this...