exam Maths Puzzle Numerical Ability

solve and check:

0=x^2-2x-1

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exam Other Question

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
Solve by using substitution or elimination:
x=3y+11
2x+5y=0