Question

simplify to the lowest terms

√162 + 6√2 -√50

Answer 1

Exact form:
10 sqrt 2

Decimal form:
14.142

Answer 2

In this case, use the lowest (x)^(1/2), which is 2^(1/2)
(81*2)^(1/2) +6(2)^(1/2)-(25*2)^(1/2)
=9(2)^(1/2)+6(2)^(1/2)-5(2)^(1/2)
=10(2)^1/2

Answer 3

I have the same answer as well.