book Maths Puzzle Numerical Ability

A plane leaves chicago heading towards LA traveling at an average speed of 540 MPH. One hour later, a second plane takes off from LA headed towards Chicago, traveling at an averag

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book Other Question
6-2x+3-(4x-1)=-2x+2 Simplify.
1) (x+2)(x+3)
2) (2x-5)(3x+2)
3) (2x+5)(x2-x-2)