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: Calculate Faster Than a Calculator

How To: Find the Percent Given Two Numbers

How To: Use ">" (greater than) and "<" (less than) symbols

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

How To: Calculate the area of a parallelogram

How To: Find the area of a circle when you know the diameter

How To: Find the slope of a line given 2 points with fractions

How To: Derive the area of a circle

How To: Find the standard error of the mean

How To: Find a number given Its percent

How To: Do long division without a calculator

How To: Learn Calculus in 20 minutes

How To: Calculate the height and volume of a pyramid

How To: Find a missing angle in a parallelogram

How To: Minimize the sum of squared error for a regression line in statistics

How To: Calculate the width of a fence given its length and perimeter

How To: Solve rational equations easily

How To: Simplify & solve multistep equations in algebra

How To: Bisect a line segment

How To: Identify geometric sequences and find the nth term

How To: Calculate Faster Than a Calculator

How To: Find the Percent Given Two Numbers

How To: Use ">" (greater than) and "<" (less than) symbols

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

How To: Calculate the area of a parallelogram

How To: Find the area of a circle when you know the diameter

How To: Find the slope of a line given 2 points with fractions

How To: Derive the area of a circle

How To: Find the standard error of the mean

How To: Find a number given Its percent

How To: Do long division without a calculator

How To: Learn Calculus in 20 minutes

How To: Calculate the height and volume of a pyramid

How To: Find a missing angle in a parallelogram

How To: Minimize the sum of squared error for a regression line in statistics

How To: Calculate the width of a fence given its length and perimeter

How To: Solve rational equations easily

How To: Simplify & solve multistep equations in algebra

How To: Bisect a line segment

How To: Identify geometric sequences and find the nth term
1 Comment
I need help with this problem asap...
Share Your Thoughts