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: Find the Percent Given Two Numbers

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

How To: Calculate Faster Than a Calculator

How To: Do long division without a calculator

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

How To: Divide small numbers by big numbers

How To: Solve word problems involving the addition of whole numbers

How To: Find the vertices of a polygon of constraints

How To: Solve exponential and logarithmic equations

How To: Convert between diameter and radius

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

How To: Determine the age of a fossil using carbon14

How To: Square expressions involving radicals

How To: Find the volume of a cylinder with given radius

How To: Calculate the growth rate or percentage change between two numbers

How To: Find a missing angle outside of a triangle

How To: Increase a number by a percentage in basic arithmetic

How To: Find an angle when there are pairs of parallel lines

How To: Calculate percent composition for chemistry

How To: Find a number given Its percent

How To: Find the Percent Given Two Numbers

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

How To: Calculate Faster Than a Calculator

How To: Do long division without a calculator

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

How To: Divide small numbers by big numbers

How To: Solve word problems involving the addition of whole numbers

How To: Find the vertices of a polygon of constraints

How To: Solve exponential and logarithmic equations

How To: Convert between diameter and radius

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

How To: Determine the age of a fossil using carbon14

How To: Square expressions involving radicals

How To: Find the volume of a cylinder with given radius

How To: Calculate the growth rate or percentage change between two numbers

How To: Find a missing angle outside of a triangle

How To: Increase a number by a percentage in basic arithmetic

How To: Find an angle when there are pairs of parallel lines

How To: Calculate percent composition for chemistry

How To: Find a number given Its percent
Be the First to Comment
Share Your Thoughts