exam Maths Puzzle Numerical Ability

Solve the equation by completing the square

x^2 + 16x + 43 = 0

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exam Other Question

R(x) has a slant asymptote; what can it not also have?
a. horizontal asymptote
b. vertical asymptote
c. another horizontal asymptote
d. any real zeroes
Please help me with this one:

x-(9x/x- 2) = (-10/x - 2)

Thank you,

Marco