x*-4x*+5x-20, 5(36-2), (x-4)(x*+5), 67, 88(1-9), 6x*-150x, 99, (7-12), 6x(x+5)(x-5), (8x-7*), 5x*+15x*+2x+6, (x+3)(5x*+2), (5-x*), (x-8)(6+9), 0, x*+6x*+8x*, (5*+78), x*(67-9), x(6*-67), x*(x+2)(x+4), xy+x+4y+4, (y+1)(x+4), (x5-8), 77, 0, 15xy+10x-18y-12, 3x-5y, (3y+2)(5x-6), 6y+2, (4x-5), 10x*-15x*-100x, 3x+5x, 8-7x, 9x(6-5), 5x(2x+5)(x-4), x*-x*-9x+9, (x-1)(x+3(x-3), (x-9+)(8-1), 1, (7-9), 12xy-20x-18y+30, 5(7y-8)(7+0), 6, 2(3y-5)(2x-3), (7*-9), 3x*y-9x*y-54xy, 7x(6y-9), (11-0), 6xy(7+8)(3-4), 3xy(x-6)(x+3), x*+3x*-4, 4, (x+1)(x-1)(x*+4), (8-4)(8x+3y), (y-9)(3+x), 8x*-4x*-32x*+16x, (5x-9), 5y(6x-9), 4x(2x-1)(x+2)(x-2), 9.

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