[Week 4]- Multiplying and Dividing Radical Expressions
What I have learned:
- Adding and Subtracting Radical Expressions
- Simplifying with more than one set of like terms
- Multiplying and dividing radical expressions
- simplifying products of expressions with variable radicands
- Rationalizing a monomial denominator
Ex. Simplify √63+√40-√90-√28
The radicals are different, so simplify each radical.
Ex. Simplify 2√x-3√y+5√x+2√y; x,y,≥0
2√x and 5√x are like terms because they are radicand x and index 2.
3√y and 2√y are like terms because they have radical y and index 2.
Ex. Expand and simplify(2√3+5)(2√3-5)
= 12- 25