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2014-10-04T17:03:43+08:00

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\sqrt{160}=\sqrt{16\cdot 10}=\sqrt{16}\cdot \sqrt{10}=4\sqrt{10}


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2014-10-04T17:45:58+08:00

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√160

We all know that 160 is no perfect square so what you are gonna do is factor it 
√10 x √16

since 16 is a perfect square

4√10
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