Question

What is the product of Seven square root eight times four square root five? Simplify your answer.

Answer 1

Hi

7√8*4√5

= 56√10

I hope that's help and sorry for late answer ^...^

Answer 2

Answer:

The value of expression is:

                          $56\sqrt{10}$

Step-by-step explanation:

We are asked to simplify the following expression:

product of Seven square root eight times four square root five.

i.e. Mathematically this expression is represented by:

$7\sqrt{8}\times 4\sqrt{5}$

$=7\times 4\times \sqrt{8}\times \sqrt{5}\\\\=28\times \sqrt{8}\times \sqrt{5}$

Also we know that:

$\sqrt{a}\times \sqrt{b}=\sqrt{ab}$

Hence,

$\sqrt{8}\times \sqrt{5}=\sqrt{40}=2\sqrt{10}$

Hence, The value of expression is:

$7\sqrt{8}\times 4\sqrt{5}=56\sqrt{10}$