book Maths Puzzle Numerical Ability

Identify any intercepts and asymptotes of the following:
f(x)= 2x-1/x-5

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book Other Question

solve x^2 - 7x +12 = 0 by factoring

x = -3, -7
-2 = -2, -4
How do I siimplify the following radical expression.
square root of 10 to the 4th power?