exam
Maths Puzzle
Numerical Ability
How do you simplify the following..
[X - (X/2 + 2) - [X - ((X/2 + 2)/2) + 2]]/2 + 2
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exam Other Question
Solve using the quadratic formula:
x^2-3x=-6x-1
what is 7 to the negative 3rd power??