book Maths Puzzle Numerical Ability

log(2+x)-log(x-2)=log(5)

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When i worked this problem, the graph did not turn out right. The equation is xsquared-5x+6=0. I have to solve the equation by graphing. could you please help me out? Please help me solve this equation: (3x^4-4x^2-18)-(2x^4+3x^3+6)