Simplify radical expressions Rationalize denominators (monomial and binomial) of radical expressions Add, subtract, and multiply radical expressions with and without variables Solve equations containing radicals In this lesson, we are only going to deal with square roots only which is a specific type of radical expression with an index of \color{red}2.If you see a radical symbol without an index explicitly written, it is understood to have an index of \color{red}2.. Below are the basic rules in multiplying radical expressions. I can simplify radical algebraic expressions. Multiplying radicals with coefficients is much like multiplying variables with coefficients. All variables represent nonnegative numbers. ˆ(" ˙ ˚ ˝(˘ ˛ ! I can multiply radical expressions. II. Rationalize the denominator: Answers to Multiplying Radical Expressions of Index 2: With Variable Factors 1) −12 x3 3 2) −60n 2n 3) −8x 15x 4) 45n 3n 5) −36x2 10x 6) −90n2 7) 20x 15 8) 6m m 9) −20 2b − 12 5b 10) 10x + 25x 11) 12k 3 − 6 2k 12) −15n 10 + 50 I can use properties of exponents to simplify expressions. A. Write the product in simplest form. Unit 4 Radical Expressions and Rational Exponents (chapter 7) Learning Targets: Properties of Exponents 1. Elementary Algebra Skill Multiplying Radicals of Index 2: No Variable Factors. The basic steps follow. Objective: Simplify radicals with an index greater than two. Simplifying Radical Expressions with Variables . View 7.5 Multiplying and Dividing Radical Expressions-judith castaneda.pdf from MAT 115 at California Baptist University. 11/4/2020 7.5 Multiplying and Dividing Radical Expressions-judith While square roots are the most common type of radical we work with, we can take higher roots of numbers as well: cube roots, fourth roots, fifth roots, etc. Examples: a. Answers to Multiplying Radicals of Index 2: No Variable Factors 1) 6 2) 4 3) More Examples: 1. When the denominator has a radical in it, we must multiply the entire expression by some form of 1 to eliminate it. Multiply the factors in the second radicand. A simplified radical expression cannot have a radical in the denominator. To multiply \(4x⋅3y\) we multiply the coefficients together and then the variables. Product Property of Square Roots Simplify. Once we multiply the radicals, we then look for factors that are a power of the index and simplify the radical whenever possible. 47. MULTIPLICATION OF RADICALS: To multiply radicals, just multiply using the same rules as multiplying polynomials (Distributive Property, FOIL, and Exponent Rules) except NEVER multiply values outside the radical times values inside the radical. Fol-lowing is a definition of radicals. Factor 24 using a perfect-square factor. 4. 21 48. Distribute Ex 1: Multiply. 6!2x 5!3 51. 3 20 49. !3Q!12 2 !6R 50. Simplify each expression. !14 ? !3 150 ? The result is \(12xy\). 30a34 a 34 30 a17 30 2. m a √ = b if bm = a The small letter m inside the radical … 8 "3 2x2 52. Multiplying Radical Expressions ˘ ˚ 4 ˙ " 4 b. Multiplying Radical Expressions. Simplifying simple radical expressions Ex 1: Ex 2: 80 50 125 450 = = = = 16*5 25* 2 25*5 225* 2 = = = = 4 5 52 5 5 ... -multiply any numbers in front of the radical; multiply any numbers inside of the radical . Rationalize all denominators. Assume that all variables are positive. ˆ ˙ ˆ ˝ ˚ ˝ ˚ ˝ ˘ c. ˆ 4 Simplifying Radical Expressions 2. Multiplying and Dividing 3.