Quiz 4.1-4.2: Simplifying, Adding, Subtracting, and Multiplying Radicals
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When adding and subtracting radicals you can only combine when they have...
Same index and same radicand
Absolute Value rules
-DONT use them on an odd index - You CAN use them on an even index but only when the answer has an *odd* exponent
Simplifying radical rules
-If the index is *even*, the number inside the radical must be positive. (cant simplify a negative number in a square root) -If the index is *odd*, the number inside the radical can be negative OR positive.
