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  1. Intro to rational exponents | Algebra (video) | Khan Academy

    We already know a good bit about exponents. For example, we know if we took the number 4 and raised it to the third power, this is equivalent to taking three fours and multiplying them.

  2. College Algebra | Math | Khan Academy

    Unit 8: Rational expressions and equations Unit mastery: 0% Rational equations Modeling with rational expressions Reducing rational expressions to lowest terms Multiplying and dividing …

  3. Dividing rational expressions (article) | Khan Academy

    A rational expression is a ratio of two polynomials. The domain of a rational expression includes all real numbers except those that make its denominator equal to zero.

  4. Pre-algebra | Khan Academy

    Identify equations from visual models (tape diagrams) Identify equations from visual models (hanger diagrams) One-step addition & subtraction equations: fractions & decimals One-step …

  5. Equations with rational expressions (video) | Khan Academy

    Video transcript - [Voiceover] So we have a nice little equation here dealing with rational expressions. And I encourage you to pause the video and see if you can figure out what …

  6. Evaluating fractional exponents: fractional base - Khan Academy

    And one way to think about it, this is going to be the same thing-- and we'll talk about this in more depth later on when we talk about exponent properties. But this is going to be the exact same …

  7. Multi-step equations | Pre-algebra | Math | Khan Academy

    Equations with parentheses Learn Equations with parentheses Multi-step equations review

  8. Rational equations intro (video) | Equations | Khan Academy

    Video transcript - [Instructor] Let's say we wanna solve the following equation for x. We have x plus one over nine minus x is equal to 2/3. Pause this video and see if you can try this before …

  9. Algebra (all content) - Khan Academy

    Solving exponential equations using properties of exponents Introduction to rate of exponential growth and decay Interpreting the rate of change of exponential models (Algebra 2 level) …

  10. Multiplying rational expressions (video) | Khan Academy

    We can factor this a squared minus 4 and we can also factor this a squared minus 1, and that'll help us actually simplify the expression or simplify the rational.