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3. Divide.
a) (16x°-8x? +4x) +2x =
b) (2x -3x+1) +4x =
c) (-50x*y2-25x'y +15x) = 5xy
d) (360-6° -90*6* +8106 + 270-0") = 90
e) (-49x* +21x*- 63x' +7x)+14*porfa todo eso​