/ 5 2 xy(x2 y – 5x +10y) 2/ (x2 – 1)(x2 + 2x) 3/ (2x -1)(3x + 2)(3 – x) 4/ -2x3 y(2x2 – 3y +5yz) 5/ (3xn+1 – 2xn ).4x2 6/ (2x2n + 3x2n-1 )(x1-2n – 3x2-2n) 7/ 3x(x2 – 2) 8/ x2 .(5x3 - x -1/2) 9/ -2x3 .(x – x 2 y) 10/ 3 2 x 2 y.(3xy – x 2 + y). 11/ (3x + 2)( 2x – 3) 14/ (x – 2y)(x2 y 2 - 2 1 xy + 2y) 12/ (x + 1)(x2 – x + 1) 15/ (x + 3)(x2 + 3x – 5) 13/ (x – y )(x2 + xy + y2 ) 16/ ( 2 1 xy – 1).(x3 – 2x – 6). 17/ 2x. (x2 – 7x -3) 18/ ( -2x3 + 3 4 y 2 -7xy). 4xy2 19/(-5x3 ). (2x2 +3x-5) 20/(2x2 - 1 3 xy+ y2 ).(-3x3 ) 21/(x2 -2x+3). (x-4) 22/( 2x3 -3x -1). (5x+2) 23/ ( 25x2 + 10xy + 4y2 ). ( ( 5x – 2y) 24/( 5x3 – x 2 + 2x – 3). ( 4x2 – x + 2)
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