Question

Simplify:

2√20-2√5

A.)√5-√5

B.)2

C.)2√5

D.)4√4-√5

Answer 1

To simplify the expression 2√20 - 2√5, you can start by applying the rule that the square root of a product is the product of the square roots of the factors. This means that you can rewrite √(20) as √(4*5) = 2√(5).

Applying this rule, the expression simplifies to:

2√(5) - 2√(5) = 2√(5) - 2√(5) = 0

Therefore, the simplified expression is equal to 2√(5).

Explanation: