In this lesson on Square Roots and Radicals, the focus is on adding and subtracting with square roots. The teacher explains that when dealing with square roots, you work with them as if they're a variable. By simplifying the square roots first, you can then add or subtract them just like like terms in algebra. However, if the square roots have different values, they cannot be combined. The lesson also includes examples and practice problems for the viewer to try.
Square Roots and Radicals Part 11 covers adding and subtracting with square roots.
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