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describe and correct error

  how do I describe and correct this error:      (3x - 2) (2x - 3)     =3x(2x-3) - 2(2x - 3)   =6x^2-9x-4x-6   =6x^2-13x-6   Thank...

What must be the friction?

Harry Hotrod rounds a corner in his sports car at 50 km/h. The friction force holds him on the road. If he has twice the speed, what must be the friction force to prevent him from skidding off the...

a race of kilo

a race is 10kilometers long. the markers will be placed at the begining and end of of the race coarse and at each 500 meter mark. how many markers are needed to mark the course for the race?

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