Question

Simplify
sqrt12 + sqrt18 - sqrt27 + sqrt 50
thnx a lot any help is greatly appriceted....
these are grade 11 radical expressions
and the answer for this is : -
-sqrt3 + 8sqrt2

Answer 1

Notice 12=4*3
and 18=9*2
and 27=9*3
and finally 50=25*2

I assume that helps.

Answer 2

thnx but how to simplyfy more, i also got till here.

Answer 3

Ok, I will start you.

sqrt (50)=sqrt (25*2)=sqrt(25)*sqrt(2)
= 5 sqrt2