Warm-ups: Simplify the following 6 128 5 12 −3 75 243 3 8 ∙ 15 ∙ 21

Section 7.5 PART 2 Operations with Radical Expressions Class notes from ___________ By the end of this section, you will be able to: Simplify radical expressions; Add, subtract, multiply, and divide radical expressions. Assignment Due ___________: A# 7.52: Page 413 #42-53 ALL MUST SHOW WORK TO RECEIVE CREDIT

Example #4: Multiply Radicals Simplify. 4 2 +2 6 5 −3 3 5 +4 3 5 −4

PRACTICE #4: Multiply Radicals Simplify. 3− 5 1+ 3 2+ 2 2− 2

Example #5: Use a Conjugate to Rationalize a Denominator Simplify. 4+ 2 5− 2 3−2 5 6+ 5

PRACTICE #5: Use a Conjugate to Rationalize a Denominator 1+ 5 3− 5 4− 7 3+ 7