Everything is on the attachedment below. SIMPLIFYING RAD

Everything is on the attachedment below.
SIMPLIFYING RADICALS.
Examples:
In problems 1 through 5 simplify the radicals.
ADDING RADICAL EXPRESSIONS. Read
http://www.purplemath.com/modules/radicals3.htm .
Simplify the following expressions as required and add or subtract.
Examples:
In problems 6 through 10 simplify the expressions then add or subtract as indicated.
MULTIPLYING RADICAL EXPRESSIONS. Read http://www.purplemath.com/modules/radicals2.htm .
Multiply the coefficients and radicands of expressions having the same indices. Simplify.
Examples:
In problems 11 through 15 multiply and simplify.
DIVIDING RADICAL EXPRESSIONS: Read http://www.purplemath.com/modules/radicals4.htm .
Rationalize the denominator by multiplying the numerator and denominator by an appropriate factor. Divide the coefficients.
In problems 16 through 20 divide.
Attachments: