when u say have (Root)2 x (Root)3, u do (Root)2x3=(Root)6.
so u just multiply the things inside the Root by each other inside a root, simples!
=]
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Surds are normally irrational numbers.
Roots that are irrational are called surds. There are irrational numbers that are not surds since they are not roots of any equation. For example, Pi. Rational roots, such as square root of 4, are not surds.
Irrational number are NOT called surds. For example, pi is irrational but it is not a surd.Surds are a very small subset of irrational numbers.
Surds are irrational square root numbers that cannot be solved but they can be simplified. For example the square root of 12 can be simplified to 2 times the square root of 3.
A surd is a square root which cannot be reduced to a whole number: however you need to be able to simplify them.