In this video, we learn how to rationalize a denominator that contains a surd. First, you need to rationalize the denominator by removing any square root sign. To do this, you will multiply the fraction but the flip of the denominator over itself, with the square root. Then, you will multiply the top by the bottom with the square root and this will remove it from the equation once you do the math to multiply it out. Once you're done, the number will be rationalized and you will have the answer. Whether you want to write down all the math or not, you will end up with the right answer each time.
 Hot
 Latest

How To: Remember "greater than" & "less than" symbols

How To: Figure out the domain & range of a piecewise function

How To: Find the Percent Given Two Numbers

How To: Calculate math without a calculator

How To: Solve percentages without a calculator

How To: Find the formula of a piecewise function given a graph

How To: Write a logarithm as a sum or difference of logarithms

How To: Find a missing side of a triangle, similar to another

How To: Evaluate combinations of functions from graphs

How To: Graph piecewise defined functions

How To: Do long division without a calculator

How To: Convert Fahrenheit to Celsius with a formula

How To: Divide small numbers by big numbers

How To: Calculate percent composition for chemistry

How To: Find a missing coordinate given: coordinate & equation

How To: Find the area of a triangle when given 2 sides & angle

How To: Subtract a mixed number from a proper fraction in basic math

How To: Be a human calculator

How To: Do normal probability calculations on a calculator

How To: Solve problems involving deductive reasoning

How To: Remember "greater than" & "less than" symbols

How To: Figure out the domain & range of a piecewise function

How To: Find the Percent Given Two Numbers

How To: Calculate math without a calculator

How To: Solve percentages without a calculator

How To: Find the formula of a piecewise function given a graph

How To: Write a logarithm as a sum or difference of logarithms

How To: Find a missing side of a triangle, similar to another

How To: Evaluate combinations of functions from graphs

How To: Graph piecewise defined functions

How To: Do long division without a calculator

How To: Convert Fahrenheit to Celsius with a formula

How To: Divide small numbers by big numbers

How To: Calculate percent composition for chemistry

How To: Find a missing coordinate given: coordinate & equation

How To: Find the area of a triangle when given 2 sides & angle

How To: Subtract a mixed number from a proper fraction in basic math

How To: Be a human calculator

How To: Do normal probability calculations on a calculator

How To: Solve problems involving deductive reasoning
1 Comment
I need help with this problem asap...
Share Your Thoughts