exam Maths Puzzle Numerical Ability

I have several questions:

Write a rule for the pattern:
-3,-9,-14,-42,-47,-141

Round the number to the place value given:
591,912, the nearest thousand

Write 29.587 i

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exam Other Question

Please evaluate the complex expression writing the final solution in standard form (1 +bi); (2-i)*(3+2i)
Thank You
solve and check:

0=x^2-2x-1