MAT 095 Lecture Notes - Lecture 23: Nth Root
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6. 3 addition and subtraction of radical expressions notes. Provide a generalization to each of the terms listed in this section. Radical expressions n a n : index or root a : radicand. Simplifying radical expressions: there would be actual factors of that are for: No perfect square roots under a square root. No perfect cubic roots under a cubic root. No perfect roots under any root: it is impossible to use fractions under a radical symbol, it is impossible to keep a radical in the denominator. It that is the case, then you would have to rationalize the denominator. Steps for adding radical expressions: simplify the given radical(s), group all of the like terms, add all of the constants, simplify or reduce if necessary. = 2 3 3 5 + 2 2 2 2 2 5. = 3p2 3 3 3 x2. Y + 3p2 5 5 5 x2. = (3) 3p2 x y + (5) 3p2 x y.
