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Lesson: Adding and Subtracting Square Roots Mathematics

In this lesson, we will learn how to add and subtract square roots and how to use that to simplify expressions.

Lesson Plan

Students will be able to

simplify the addition and subtraction of square roots using the rules of addition (i.e., associativity, commutativity, and inverses),
recognize the link between repeated addition of square roots and multiplication,
use the property to simplify the addition of expressions.

Q1:

Simplify .

Q2:

Simplify .

Q3:

Given that and , find the value of .