In this video Paul Andersen explains how object interactions can add or remove mass or energy from a system.

Your interstellar police squad has tracked a group of criminals to a cluster of seven planets. Now you must apprehend them before their reinforcements arrive. Of course, the fugitives won't just stay put _ they'll try to dodge you by...

In this shorts math video we will answer a standardized math test question where we simplify a numerical expression. We will understand that we need to simplify the expression in the parentheses FIRST. We will review that we need to...

In this math video we will be simplifying radicals TWO ways. We will begin by understanding the power and the relationship between the exponent and the base. We will multiply the base by itself twice since the exponent is 2. We will...

In this math video we will review how to simplify a polynomial expression. We will begin by clearing the parentheses using the Distributive Property. We will review that you multiply each term inside the parentheses by the factor...

In this Algebra 1 math video, we’ll use the laws of exponents to evaluate a radical expression — perfectly aligned with Standard HS.N-RN.A.2.
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We’re solving a problem that involves a cube root inside parentheses that’s...

Learn how astrophysicists use the orbital motion of a visible star—its speed and period—to infer the mass of its invisible companion, often a black hole, in a binary system.

A video entitled "Different Bases" that covers rewriting expressions using the rule for applying powers to expressions with different bases.

A video entitled "Exponential Problems" which shows how to apply exponent rules to simplify an expression.

A video entitled "Multiply and Divide Rationals" that shows how to divide two rational expressions.

A video entitled "Add and Subtract Rationals" which shows how to use a least common denominator to rewrite rational fractions so that they can be added or subtracted.

Howcast - Simplify your financial planning and take charge of your future by rolling over funds from old retirement plans -- like a 401(k) from a former job -- into a single Individual Retirement Account, or IRA. Here's how.

Howcast - With ePrint from HP, you can print from your mobile device to an HP web-connected printer. Here's how this technology can make your life a little simpler.

Howcast - Learn how to draw in the kawaii manga style from art instructor Chris Hart in this Howcast video.

Isolating a variable is a matter of separating and simplifying.

Is the swirl of the pandemic, protests, and politics making your head spin? OnlyGood TV is launching a new series called Simplified that both entertains and demystifies what is going on in the world to help you be...

Is the swirl of the pandemic, protests, and politics making your head spin? OnlyGood TV is launching a new series called Simplified that both entertains and demystifies what is going on in the world to help you be ready...

Pupil outcome: I can use knowledge of fractions in their simplest form when solving addition and subtraction problems. Key learning points: - You divide the numerator and denominator by the same factor to create the equivalent fraction....

Pupil outcome: I can reason about how to write a fraction in its simplest form. Key learning points: - A common factor is a number which is a factor of both the numerator and denominator. - A fraction is in its simplest form when there...

Pupil outcome: I can simplify expressions by collecting like terms. Key learning points: - Like terms and their coefficients can be identified. - Like terms can be represented using a bar model. - Like terms can be collected together,...

Pupil outcome: I can use the distributive law to multiply multiple expressions by their respective terms and then simplify by collecting like terms Key learning points: - An expression can be multiplied by any term. - We may have more...

Pupil outcome: I can use the relationship between the numerator and denominator to simplify fractions. Key learning points: - If the multiplicative relationship between the numerator and denominator is the same, the fractions will be...

Pupil outcome: I can use understanding of equivalent fractions to solve problems. Key learning points: - If the multiplicative relationship between the numerator and denominator is the same, the fractions will be equivalent. - In...

Pupil outcome: I can simplify expressions involving algebraic fractions. Key learning points: - An algebraic fraction can have more than one term in the denominator. - Your equivalent fraction knowledge can be used to simplify the fraction.