Curated OER
What's a Factor?
The instructors shows how to identify factors by breaking apart the numbers and variables of a product.
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How do you Solve 5(2x + 7) = 45?
Solving an algebra equation can be easy following these simple steps. An instructor leads viewers in an exploration of how to solve algebraic equations such as 5(2x+7) =45.
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Solving a Variable Equation
Learners explore how to solve an algebraic equation. Using simple equations, viewers follow the process of solving an equation to identify the variable. The problems increase in complexity throughout the video.
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Variables
Brian explains about variables and uses cookies and friends to set up an example. He poses a word problem and then goes through the process to solve for the variable.
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How Do You Write the Equation of a Line in Slope-Intercept Form from a Word Problem?
There will be two variables in this equation since a straight line means a linear equation. Writing the equation in slope-intercept form means there is an x-value and a y-value. So let's watch this video and see what it takes to use the...
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How Do You Subtract Polynomials Vertically?
Subtract polynomials? Huh? First off, find the additive inverse of the number you are subtracting. Next, rewrite the polynomials one on top of the other. Make sure to line up the like terms and then write in placeholders. Now, add the...
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How Do You Add Polynomials Vertically?
The instructor demonstrates how to line up two polynomials vertically to add them together. She emphasizes lining up the terms with the same powers. She also identifies some places where there is no term and shows how to write a...
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How Do You Simplify an Algebraic Fraction by Canceling Common Factors?
Use prime factorization to simplify this algebraic fraction. When the factorization is done then cancel out all values in which a value from the numerator and a value from the denominator equal 1. And what is left over is then the...
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How Do You Write and Solve an Equation From a Word Problem?
How much does Mariana get paid? This word problem is not so simple because Mariana gets paid two different rates for different numbers of hours babysitting. So, there are a few steps to solving this problem. The instructor will define...
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How Do You Solve a Word Problem Using Two Equations?
Two equations and two unknown variables in a word problem. Don't cry! Follow the instructor through these nine steps to find the solutions. Identify the variables, write the equations, solve for one of the variables, use the substitution...
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How Do You Solve a Word Problem Using the Elimination by Subtraction Method?
Use word problems to teach systems of equations! The instructor in this video demonstrates how to solve a word problem using a system of equations and the elimination by subtraction method. She goes through each step, carefully...
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How Do You Find the Least Common Multiple of Monomials?
Looking for the least common multiple, not the greatest common factor. It's so easy to mix these up. It may seem a little confusing at first because there are variables and exponents in the monomial examples. Watch this video and get...
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How Do You Write an Equation of a Line in Point-Slope Form and Standard Form If You Have Two Points?
There are a lot of steps in this problem. But just like walking up a flight of stairs, you should take one step at a time, so too in the solving of this problem. The instructor explains each step and what to do to move to the next one.
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How Do You Find the Product of Powers?
Practice using the product of powers rule to simplify an expression. Remember that only like-bases can be put together. Use the commutative property of multiplication to rearrange the terms and then use the formula to combine terms. Now...
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How Do You Write an Equation From a Word Problem?
Word problems. Raise your hand if you love word problems! Don't see any hands raised? Watch this video as the teacher demonstrates how to identify the variables and match them up with given values in the word problem. Then she writes an...
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How Do You Turn a More Complicated Expression into Words?
Given an algebraic expression, write a word problem. Usually it's the other way around where you have a word problem and need to write an algebraic expression. But, this is a good skill to have because it would mean that one has a good...
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Algebra: Factoring Polynomials
In need of a tutor to work through a series of algebra problems involving factoring polynomials? View this video and watch how this tutor describes what he does as he factors several different polynomials. Be aware this clip will not...
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How Do You Solve a Rational Equation?
There are a lot of steps in this problem. But just like walking up a flight of stairs, you should take one step at a time, so too in the solving of this problem. The instructor explains each step and what to do to move to the next one.
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How Do You Add Variables that Are the Same?
The teacher explains that adding many variables that are the same is like multiplying them. She writes one example using whole numbers and one example with variables.