Products and Quotients Involving Radicals

Multiplying Radicals

Recall that

Multiply and simplify.

Conjugates and Dividing Radicals
A pair of expressions a+b and a-b are said to be conjugate. The product of a conjugate
pair gives us the difference of squares: (a + b)(a - b) = a^2 - b^2.

12. What is the conjugate of

Simplify each expression.

19. True or False?