Question

What is the value of √8+√18-2√2?

Answer 1

Answer:

$3 \sqrt{2}$

Step-by-step explanation:

$\sqrt{8} = 2 \sqrt{2}$

$\sqrt{18} = 3 \sqrt{2}$

So

$\sqrt{8} + \sqrt{18} - 2 \sqrt{2} = 2 \sqrt{2} + 3 \sqrt{2} - 2 \sqrt{2}$

$3 \sqrt{2}$

Answer 2

Given : √8  + √18 - 2√2

To Find : Simplify

Solution:

√8  + √18 - 2√2

√8  = √(2 x 2 x 2)  = √(2² x 2)  = 2√2

√18  = √(2 x 3 x 3)  = √3² x 2)  = 3√2

√8  + √18 - 2√2

= 2√2  + 3√2 -  2√2

= 3√2

√8  + √18 - 2√2  = 3√2

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