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Simplifying square-root expressions - Khan Academy
So let's say I have square root of two a times the square root of 14 a to the third times the square root of five a. So like always, pause this video and see if you can simplify this on your own. Multiply them and then take all the perfect squares out of the radical.
Simplifying square roots - Khan Academy
What about roots that aren't equal to an integer, like √20? Still, we can write 20 as 4⋅5 and then use known properties to write √(4⋅5) as √4⋅√5, which is 2√5. We *simplified* √20.
Square roots – Khan Academy Help Center
If you haven't already, Khan Academy has some content on simplifying square roots with variables that should help you out. There are also exercises that give you the explanation step by step if you need help.
Simplifying roots of negative numbers - Khan Academy
This lesson dives into simplifying the square root of negative numbers using 'i', the principal square root of -1. We'll explore how to rewrite negative numbers as products, and use prime factorization to simplify roots.
Simplify roots of negative numbers (practice) | Khan Academy
Rewrite square roots of negative numbers as imaginary numbers. Skip to main content If you're seeing this message, it means we're having trouble loading external resources on our website.
Simplifying square-root expressions (video) | Khan Academy
Worked examples of taking expressions with square roots and taking all of the perfect squares out of the square roots. For example, 2√(7x)⋅3√(14x²) can be written as 42x√(2x). Skip to main content
Simplifying square roots (variables) | Algebra (video) | Khan Academy
A worked example of simplifying radical with a variable in it. In this example, we simplify 3√(500x³).
Simplify square roots - Khan Academy
For example, simplify √18 as 3√2.
Simplifying Square Roots - Khan Academy Help Center
example 1: find the square root of 36? 36, oviously indicates the positive square root of 36 . therefore 6 * 6 is 36 , then 36 = 6, as you have learnt perfect squares . example 2: find the square root -64? -64 indicates the negative square root of -64, and therefore 8*8 is 64, -64 = -8.