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Adding and Subtracting expressions containing radicals. What is a radicand? The number under the radical or square root symbol. 2. What must you do before you can add or subtract fractions?
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Adding and Subtracting expressions containing radicals What is a radicand? The number under the radical or square root symbol. 2. What must you do before you can add or subtract fractions? You must have like denominators. The same is true for adding and subtracting expressions containing radicals…the radicands must be the same.
Standard: M8N1. Students will understand different representations of numbers including square roots, exponents, and scientific notation.Element: g. Simplify, add, subtract, multiply and divide expressions containing square roots.Essential Question: How do I add and subtract square roots?
1. Simplify. Just like when adding fractions, you can only combine LIKE radicands. 2. Simplify. Which are like radicands?
Simplify A. . B. C. D.
3. Find the perimeter of a rectangle whose length is and whose width is Perimeter = Add all of the sides
4. Simplify. Simplify each radical. Combine like radicands.
Simplify A. B. C. D.
Simplify A. B. C. D.
Now, get out your own notebook paper to practice some on your own. Please show all steps on your notebook paper!