Solve the Square Root Multiplication: √25 × √4

Question

Solve the following exercise:

254= \sqrt{25}\cdot\sqrt{4}=

Video Solution

Solution Steps

00:00 Solve the following problem
00:03 The square root of a number (A) multiplied by the square root of another number (B)
00:07 equals the square root of their product (A times B)
00:11 Apply this formula to our exercise and calculate the product
00:14 Calculate the square root of 100
00:16 This is the solution

Step-by-Step Solution

We can simplify the expression directly without using the laws of exponents, since the expression has known square roots, so let's simplify the expression and then perform the multiplication:

254=52=10 \sqrt{25}\cdot\sqrt{4}=\\ 5\cdot2=\\ \boxed{10} Therefore, the correct answer is answer C.

Answer

10 10