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Warm Up Simplify each expression. 1. 14x + 15y – 12y + x

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Presentation on theme: "Warm Up Simplify each expression. 1. 14x + 15y – 12y + x"— Presentation transcript:

1 Warm Up Simplify each expression. 1. 14x + 15y – 12y + x 2. 9xy + 2xy – 8xy 3. –3(a + b) + 15x + 3y 3xy –3a – b + 10

2 Solve using square roots. Check your answer.
x2 = 169

3 Objective Add and subtract radical expressions.

4 Square-root expressions with the same radicand are examples of like radicals.

5 Like radicals can be combined by adding or subtracting
Like radicals can be combined by adding or subtracting. You can use the Distributive Property to show how this is done: Notice that you can combine like radicals by adding or subtracting the numbers multiplied by the radical and keeping the radical the same.

6 Combining like radicals is similar to combining like terms.
Helpful Hint

7 Add or subtract. A. E. B. C. D.

8 Sometimes radicals do not appear to be like until they are simplified, Simplify all radicals in an expression before trying to identify like radicals.

9 Simplify each expression.

10 When you write a radicand as a product, make at least one factor a perfect square.
Remember!

11 Simplify each expression.

12 Find the perimeter of the triangle
Find the perimeter of the triangle. Give the answer as a radical expression in simplest form. HW pp /15-30,32,34,36,38,39,41-47 Odd, 49-63 Odd,71-78


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