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![sqrt{16} times sqrt{121} = 4 times 11 = 44 sqrt{16} times sqrt{121} = 4 times 11 = 44](https://tex.z-dn.net/?f=+sqrt%7B16%7D++times++sqrt%7B121%7D++%3D+4+times+11+%3D+44)
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![sqrt{225} times sqrt{169} = 15 times 13 = 195 sqrt{225} times sqrt{169} = 15 times 13 = 195](https://tex.z-dn.net/?f=+sqrt%7B225%7D++times++sqrt%7B169%7D++%3D+15+times+13+%3D+195)
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![sqrt{0.25} + sqrt{36} = 0.5 + 6 = 6.5 sqrt{0.25} + sqrt{36} = 0.5 + 6 = 6.5](https://tex.z-dn.net/?f=+sqrt%7B0.25%7D++%2B++sqrt%7B36%7D++%3D+0.5+%2B+6+%3D+6.5)
б)
![sqrt{8 - 2 times ( - 4)} = sqrt{8 + 8} = sqrt{16} = 4 sqrt{8 - 2 times ( - 4)} = sqrt{8 + 8} = sqrt{16} = 4](https://tex.z-dn.net/?f=+sqrt%7B8+-+2+times+%28+-+4%29%7D++%3D++sqrt%7B8+%2B+8%7D++%3D++sqrt%7B16%7D++%3D+4)
![sqrt{8 - 2 times 2} = sqrt{8 - 4} = sqrt{4} = 2 sqrt{8 - 2 times 2} = sqrt{8 - 4} = sqrt{4} = 2](https://tex.z-dn.net/?f=+sqrt%7B8+-+2+times+2%7D++%3D++sqrt%7B8+-+4%7D++%3D++sqrt%7B4%7D++%3D+2)
![sqrt{8 - 2 times 3.5} = sqrt{8 - 7} = sqrt{1} = 1 sqrt{8 - 2 times 3.5} = sqrt{8 - 7} = sqrt{1} = 1](https://tex.z-dn.net/?f=+sqrt%7B8+-+2+times+3.5%7D++%3D++sqrt%7B8+-+7%7D++%3D++sqrt%7B1%7D++%3D+1)
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