Try our Free Online Math Solver!

polynomials denominators
Multiplifying polynomials
Recall that in general (a+b)^{2} ≠ a^{2}+b^{2}
Example 0.1 let a = 3 and b = 4
Using the distributive property and the FOIL property we
can multiply rad
ical expressions in the same way we multiplied polynomials.
Example 0.2
Example 0.3
Example 0.4
Example 0.5
We do not want to leave roots in the denominator of a
fraction. When we
encounter a single root in the denominator just multiply the top and bottom
of the fraction by a value that will create an integer in the denominator.
Example 0.6
Example 0.7
Example 0.8
Definition 0.1 The conjugate of a + b is a  b.
When the denominator contain two terms , we rationalize the denominator
by multiplying the top and bottom of the fraction by the conjugate of de
nominator.
Example 0.9
Example 0.10
Example 0.11
Prev  Next 