This video in the Education category will show you how to simplify radicals before adding or subtracting. By doing this you will find all like radicals which will then ensure that you have all radicals in the simplest form. Let's say you want to subtract square root of 45 from 3 square roots of 20. Now square root of 45 can be written as square root of 9 x square root of 5. Because, 9 and 5 are factors of 45. Similarly, 3 square roots of 20 can be simplified to 3 x square root of 4 x square root of 5. Now square root of 9 x square root of 5 will be 3 square root of 5. And 3 x square root of 4 x square root of 5 will be 3 x 2 x square root of 5 or 6 square root of 5. Square root of 5 being the common radical, subtract 3 from 6 and the result will be 3 square root of 5. When you watch the video this will be very clear.
 Hot
 Latest

How To: Do long division without a calculator

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Calculate Faster Than a Calculator

How To: Find the Percent Given Two Numbers

How To: Convert Fahrenheit to Celsius with a formula

How To: Reduce fractions to their simplest form in basic math

How To: Calculate percent composition for chemistry

How To: Find the Radius of a Circle from Arc Length

How To: Solve percentages without a calculator

How To: Find the Slope Given 2 Ordered Pairs

How To: Calculate the age of the universe w/ Hubble's constant

How To: Reduce a fraction to its simplest form in basic math

How To: Solve & find the least common multiple

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

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

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

How To: Convert between diameter and radius

How To: Identify characteristics of a sample during a survey

How To: Calculate the area of a parallelogram

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

How To: Do long division without a calculator

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Calculate Faster Than a Calculator

How To: Find the Percent Given Two Numbers

How To: Convert Fahrenheit to Celsius with a formula

How To: Reduce fractions to their simplest form in basic math

How To: Calculate percent composition for chemistry

How To: Find the Radius of a Circle from Arc Length

How To: Solve percentages without a calculator

How To: Find the Slope Given 2 Ordered Pairs

How To: Calculate the age of the universe w/ Hubble's constant

How To: Reduce a fraction to its simplest form in basic math

How To: Solve & find the least common multiple

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

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

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

How To: Convert between diameter and radius

How To: Identify characteristics of a sample during a survey

How To: Calculate the area of a parallelogram

How To: Find a missing side of a triangle, similar to another
Be the First to Comment
Share Your Thoughts