Question 123

Find the simplest value of $$2\sqrt{50} + \sqrt{18} - \sqrt{72}$$ is __? $$(\sqrt{2} = 1.414)$$.

Solution

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Given equation can be reduced in the form of $$10\sqrt2 + 3\sqrt2 - 6\sqrt2 = 7\sqrt2$$
Hence  $$7\sqrt2$$ will be around 9.898

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