Please use this form if you would like to have this math solver on your website, free of charge.
Multiplying Radicals
The product rule for radicals,
allows multiplication of
radicals with the same index, such as
Caution
The product rule does not allow multiplication of radicals that
have different indices. We cannot use the product rule to multiply
Example 1
Multiplying radicals with the same index
Multiply and simplify the following expressions. Assume the variables represent
positive numbers.
Solution
Product rule for radicals
Product rule for radicals
Simplify.
Simplify.
Product rule for radicals
Simplify
Rationalize the denominator.
We find a product such as
by using the distributive property
as we do when multiplying a monomial and a binomial. A product such as
can be found by using FOIL as we do for the product
of two binomials.