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Why is it legal to factor 2x+2y as 2(x+y), but not x sauared +y squared as (x+y)squared? This site there are the distributive laws are separated from the distributive "mistakes," in an easy-to-understand discussion. Logarithms and trig functions are also reviewed.
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- Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)