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OpenStudy (quickstudent):
Is this correct? simplifying radical expressions
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OpenStudy (quickstudent):
OpenStudy (alexandervonhumboldt2):
ok so here is ow rationalize the denom you need to multply it by congugate: \[\frac{ 1-\sqrt5 }{ 3+\sqrt5 }*\frac{ 3-\sqrt5 }{ 3-\sqrt5 }=\frac{ (1-\sqrt5)*(3-\sqrt5) }{ 9-5 }=\frac{ 8-4\sqrt5 }{ 4 }\]
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