wikiHow Multiplying Square Roots Calculator 1. Identify the two square roots to be multiplied. 2. Write each square root as a product of its factors. 3. Multiply the factors of the two square roots together. 4. Combine like terms inside the radical if possible. 5. Simplify the radical if possible. Here's an example to help illustrate the process: √5 x √15 Step 1: Identify the two square roots to be multiplied, which are √5 and √15. Step 2: Write each square root as a product of its factors. √5 = √(5 x 1) √15 = √(5 x 3) Step 3: Multiply the factors of the two square roots together. √5 x √15 = √(5 x 1) x √(5 x 3) = √(5 x 5 x 3) Step 4: Combine like terms inside the radical if possible. √(5 x 5 x 3) = √75 Step 5: Simplify the radical if possible. √75 = √(25 x 3) = 5√3 So √5 x √15 = 5√3. Alternatively, you can use an online multiplying square roots calculator to quickly multiply square roots by inputting the square roots to be multiplied. Page