1.

Find the roots of the following equations:©X--= 3,x70

Answer»

x2-1=3 x2=3+1x2=4then. x=√4x= +2,-2

( x-1 / x)^2 = 3^2; x^2 + 1/ x^2 -2x/x = 9; x^2 + 1/ x^2 =9+2=11



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