How do you add 5\sqrt { 2y } + 7\sqrt { 2y }?

2 Answers
Jan 26, 2018

12sqrt(2y)

Explanation:

You can treat sqrt(2y) as a variable and just add the coefficients.

5sqrt(2y) + 7sqrt(2y) = 12sqrt(2y)

Jan 26, 2018

=12 sqrt(2y)

Explanation:

Let sqrt(2y) = a

Then the given term becomes,

5 a + 7 a= 12 a

Now replace a with sqrt(2y)

It becomes 12 sqrt(2y)