3 × √2 + √50 – √18 =

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3 × √2 + √50 – √18

To simplify this expression, we need to find the square roots of 2, 50, and 18:

√2 = 1.414
√50 = 7.071
√18 = 4.243

Now we substitute these values back into the expression:

3 × 1.414 + 7.071 - 4.243 = 4.242 + 7.071 - 4.243 = 7.082

Therefore, 3 × √2 + √50 – √18 = 7.082