exam Maths Puzzle Numerical Ability

Without solving the inequality, what are the restrictions of x if log base 2^(x-1) - log base 2^(x+1) > 9? Please explain. Thank you.

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9. approximate the point of the intersection of the graphs og f and g. then solve the equation f(x)=g(x) algebraically. f(x)=log3x g(x)=0 What is the product of two binominals and support the answer by identifying the factoring of polynomials.