12 Expand and simplify if possible, without using your calculator:a (3+√5)b (2-√5)(5+√3)c (6-√2)(4-√7) 相关知识点: 试题来源: 解析 3+√5;10+2√3-5√5-√(15);24-6√7-4√2+√(14) a (3+√5)=10+2√3-5√5-√(15) c (6-√2)(4-√7)=24-6√7-4√2+...
Chapter 10/ Lesson 4 151K Understand how to evaluate logarithmic expressions, know how to solve logarithmic equations, and explore the various properties of logarithms that are used in evaluating logarithm problems. Explore our homework questions and answers library ...