Simplifying rational expressions 2 | Polynomial and rational functions | Algebra II | Khan Academy

Simplifying Rational Expressions 2

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[petersarkozy]

Dear Sal!

It doesnt matter which order you use when grouping. So you can write the expression as 2x^2 + 5x + 8x + 20 instead of 2x^2 + 8x + 5x + 20. After factoring the first and the second term, and factoring the third and the fourth term, you'll get the same result. And its true in every case. 
High respect anyway! Great videos!

[dominikkannenwischer]

Can you not simplify the 4/6 in the end to 2/3? Or would that change the something?

[runboy]

Thank you for the help.(P.S. do you read the youtube comments?)