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Maths Puzzle
Numerical Ability
A car moving at 50km/h skids 15m with locked brakes. How far will the car skid with locked brakes at 150km/h?
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book Other Question
3x + 18 + 3(x+2) = 6x + 54
Solve for x.
x^4-5x^3+12x^2-5x-2
factorise it