Question

What is value if we add2√5+2√5

Answer 1

Answer:

$4\sqrt{5}$

Step-by-step explanation:

Q. Is the given number rational or irrantional?

A. The given number is irrational. It's because $\sqrt{5}$ is an irrational number.

And we know that sum of irrational numbers is also irrational.

Hence, the number is irrational.

The value of $\sqrt{5}$ is approx 2.2360679775.

So, if I put $\sqrt{5}= 2.2360679775$, then the value of the above question will come.

Putting root5= 2.2360679775,

2× 2.2360679775+2× 2.2360679775

4×( 2.2360679775)

8.94427191

Answer 2

$2 \sqrt{5} + 2 \sqrt{5}$

$4 \sqrt{5}$

$4 \times 2.236$

$8.944$

THE VALUE OF 2root5+2root5=8.944

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