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6\times 2\sqrt{2}+3\sqrt{18}-10\sqrt{32}
Factor 8=2^{2}\times 2. Rewrite the square root of the product \sqrt{2^{2}\times 2} as the product of square roots \sqrt{2^{2}}\sqrt{2}. Take the square root of 2^{2}.
12\sqrt{2}+3\sqrt{18}-10\sqrt{32}
Multiply 6 and 2 to get 12.
12\sqrt{2}+3\times 3\sqrt{2}-10\sqrt{32}
Factor 18=3^{2}\times 2. Rewrite the square root of the product \sqrt{3^{2}\times 2} as the product of square roots \sqrt{3^{2}}\sqrt{2}. Take the square root of 3^{2}.
12\sqrt{2}+9\sqrt{2}-10\sqrt{32}
Multiply 3 and 3 to get 9.
21\sqrt{2}-10\sqrt{32}
Combine 12\sqrt{2} and 9\sqrt{2} to get 21\sqrt{2}.
21\sqrt{2}-10\times 4\sqrt{2}
Factor 32=4^{2}\times 2. Rewrite the square root of the product \sqrt{4^{2}\times 2} as the product of square roots \sqrt{4^{2}}\sqrt{2}. Take the square root of 4^{2}.
21\sqrt{2}-40\sqrt{2}
Multiply -10 and 4 to get -40.
-19\sqrt{2}
Combine 21\sqrt{2} and -40\sqrt{2} to get -19\sqrt{2}.