Simplifying Rational Expressions... How? (NancyPi)

Description: MIT grad shows how to simplify a rational expression. To skip ahead: 1) for how to simplify an expression with DIFFERENCE of SQUARES factoring in it (x^2 - 49), skip to time 1:01. 2) for how to write the CONDITION or RESTRICTION, skip to time 3:52. 3) for how to simplify an expression with QUADRATIC(s) in it (like the x^2 - 3x 2 trinomial), skip to time 6:12. 4) for an example with LARGER COEFFICIENTS and a NEGATIVE x^2 term (like -20x^2 14x 12), skip to time 9:57. Nancy formerly of mathbff explains the steps: For how to FACTOR QUADRATICS, jump to For how to FIND the DOMAIN of a function, jump to For more factoring examples in my video on how to solve quadratic equations by FACTORING, jump to: Follow me on Instagram! Follow me on Twitter: There are three steps to simplify algebraic rational expressions: 1) Factor the numerator and denominator as