What is the exact value of the expression the square root 72. − the square root of 8. + the square root of 128.? Simplify if possible.
+37146 sqrt 72 - sqrt8 + sqrt 128
sqrt ( 36*2) - sqrt (4*2) + sqrt (64*2)
6 sqrt 2 - 2 sqrt 2 + 8 sqrt2
12 sqrt 2
+37146 sqrt 72 - sqrt8 + sqrt 128
sqrt ( 36*2) - sqrt (4*2) + sqrt (64*2)
6 sqrt 2 - 2 sqrt 2 + 8 sqrt2
12 sqrt 2
