Given the expression:
Since we have 2 in the square root from 8√2. We will be converting terms in √2 form so we can. evaluate.
As we know, 50 comes from 5×10 = 5×5×2
and 18 comes from 9×2 = 3×3×2.
In the square root, if there are two same numbers, we can pull it out as one.
Ex. √5×5 would be 5. Refer to below:
Since there are two fives and two threes in the square root, we pull these numbers out only one.
Because these terms have the same square root of 2, we can evaluate 5+3-8.
Of course, like term - like term = 0
Hence, the answer is 0.