17-5
ſ+ √5
![\sqrt{7} - \sqrt{5} \div \sqrt{7} + \sqrt{5} \sqrt{7} - \sqrt{5} \div \sqrt{7} + \sqrt{5}](https://tex.z-dn.net/?f=+%5Csqrt%7B7%7D++-++%5Csqrt%7B5%7D++%5Cdiv++%5Csqrt%7B7%7D++%2B++%5Csqrt%7B5%7D+)
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2
Step-by-step explanation:
the third question answe is root 1
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