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Mathematics, 13.08.2020 03:01 vvkaitlynvv4982

Help please! <3 Simplify the expression to find the correct answer. Show your work and explain how you got that answer. \frac{1}{3}\sqrt{21}-\frac{2}{3}\sqrt{3} x \sqrt{7} A. -\frac{1}{3}\sqrt{21} B. \frac{2}{3}\sqrt{21} C. \frac{2}{3}\sqrt{18×7} D. -\frac{1}{3}\sqrt{63}x\sqrt{7}

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