How do you simplify radical 8?

2 Answers
Apr 3, 2018

sqrt(8) = sqrt(4)sqrt(2) = 2sqrt(2)

Explanation:

When simplifying radical expressions, one should try to factor each radicand into a product of perfect squares.

Apr 3, 2018

2sqrt2

Explanation:

when using surd laws we know:

sqrtab =sqrta xx sqrt b

Therefore:

sqrt8 =sqrt4xxsqrt2

Simplifying:

Using our squared numbers:

sqrt4 =2

-> sqrt8 =2sqrt2

As you still have sqrt2 and then you stick the 2 in front of the root