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√x=(√24)/(√8)
√x=√(24/8)
√x=√3//² podnosimy obustronnie do kwadratu
x=3
odp. x = 3
b)√x*√7=√56 //:√7
√x=√56/√7
√x=√(56/7)
√x=√8 //² podnosimy obustronnie do kwadratu
x=8
odp. x=8
c)
√124 / √x = √10 //*√x
√124=√10*√x //:√10
√124/√10=√x
√(124/10)=√x
√(12.4)= √x //² podnosimy obustronnie do kwadratu
12.4 = x
odp. x=12.4
d)
√x / √6 = √13 //* √6
√x=√13* √6
√x=√(13*6)
√x=√78 //² podnosimy obustronnie do kwadratu
x= 78
odp. x= 78