Use Properties of Radicals to simplify radicals. 9.2 Simplifying Radicals Goal: Use Properties of Radicals to simplify radicals. Eligible Content: A1.1.1.1.2
Vocabulary Simplest Form The radicand is not divisible by any perfect squares The radicand is not a fraction There is no radical symbol in the denominator of a fraction
Vocabulary Product Property – the square root of a product equals the product of the square roots of the factors. 𝑎∙𝑏 = 𝑎 ∙ 𝑏
Simplify: 50 Method 1: Know your perfect squares 50 = 25 * 2 So 50 = 25 ∙ 2 2 5
Simplify: 50 Method 2: Make a factor tree! 50 5 * 10 5 * 2 * 5 2 5
Examples 48 125 96 5 44 3 ∙ 12 3 ∙ 21 4 3 5 5 4 6 10 11 6 3 7
A. B. C. 15 D.
A. B. C. D. 35
Vocabulary Quotient Property – the square root of a quotient equals the quotient of the square root of the numerator and denominator. 𝑎 𝑏 = 𝑎 𝑏
Simplify: 4 25 4 25 4 25 2 5 = =
Examples 3 4 20 4 32 50 7 16 18 3 80 45 𝟑 𝟐 𝟕 𝟒 𝟓 𝟐 𝟐 𝟒 𝟓 𝟒 𝟑
Practice 32 54 486 8 18 25 72 6 40 90 49 81
Homework Page 631 #1-6 #17-26