SOLUTION: how to simplify this problem: √8 + √28 I got: √2 + √7 But I do not think these can be combined. Thank you.

Algebra ->  Radicals -> SOLUTION: how to simplify this problem: √8 + √28 I got: √2 + √7 But I do not think these can be combined. Thank you.       Log On


   

Question 304999: how to simplify this problem: √8 + √28
I got:
√2 + √7
But I do not think these can be combined.
Thank you.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
how to simplify this problem: √8 + √28
I got:
√2 + √7
But I do not think these can be combined.
-----
sqrt(8) + sqrt(28)
---
= sqrt(4*2) + sqrt(4*7)
---
= 2sqrt(2) + 2sqrt(7)
---
= 2(sqrt(2)+sqrt(7))
========================
Cheers,
Stan H.