Question

How do you add sqrt(18) + sqrt(8)?

Answer 1

ok so sqrt 8 = sqrt 4 * sqrt 2 = 2*sqrt 2
sqrt 18 = sqrt 9 * sqrt 2 = 3*sqrt 2

2*sqrt2 + 3*sqrt2 = 5*sqrt2

Answer 2

Hope I help! :)

Answer 3

well .. u have to simply them a bit further first ,
u can write \[\sqrt{18 } = \sqrt{ 9 \times 2} = 3\sqrt{2}\]
and
\[\sqrt{8} = \sqrt{4 \times 2} = 2\sqrt{2}\]
now u have something similer
\[3\sqrt{2} + 2\sqrt{2}\]
now to get the answer just add the numbers in front of the square root symbol which is
\[5\sqrt{2}\]

Answer 4

Thanks again lol. :D

Answer 5

u r welcome :3