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(x2y-1)-2 . x0y-2z3

____________________

(x-1zy-2)-1

Oct 20th, 2017

(x2y-1)-2 . x0y-2z3

____________________= x -4 y2.x0.y-2z3 /( x1z-1y2)= x-5y2-2-2 z3-(-1)

(x-1zy-2)-1

= x-5y-2z4


Nov 23rd, 2014

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