9.5 多项式的因式分解（3）因式分解综合 同步练习 2023—2024学年苏科版数学七年级下册

多项式的因式分解(③):因式分解综合 模块: 因式分解综合 (1)-10xy+y+25xy (2) a*+a’b-ab?}-b; (3) 4m(a-b)+2n(b-a); (5)(x-2)(x-4)+1: (4)a-6a}+9a (6)x4-8x}+16: (7)4xv-6xy: (8)-r2+4xy-4y: (9) ab+4b; (10)n2-4m+4; (11)r2-4y2: (12) x2+9xy+18y-3x-9 (13) 3m}-6mn+3n}; (14)(2x+y)*-(x+2y)}}; (15)3m-27; (16)x2-12x+36. (17) -2xy+12xy-18y (18)3x-12xy}; (20) (x2+1)*-4x2; (19)3x-12x; (21)1-4x}; (23)16x}-y2; (22) $b-2ab^$}+b}$ (24) a{x-yl+b(y-x); (25)-10xy++25x?y (26) a+a^{}b-ab^{}-b3 (27) 9(m+n)}-(m-)}; (28)-2a+12a-18$ (29)7x-28; (30) -14x+49;$ (31) (2+){-36}; (32) 4m}-12m+8; (33) 6x2v+21xy (34)a(x-y)-4(x-y): (35)(3-2)-(2x+7)}; (36) 4+12(x-y)+9(x-y)} (37)3a}-3b}; (38) xy-2x②y+xy; (39) -x-4y+4xy; 2 (41) ax2+2axy+ay?; (40) (42) x*-(y-2y+1); (43)(a+3)(a-7)+21; (44)(m-n)(x-y)+(m-n)(x+y); (45) 2a{+8a2b+8ab^{}; (46)m}(n-3)+4(3-n); (47)a-4a; (48) 2x2-12xy+18y} (49) -2x+8xy2 (50) 3a*-12a+12; ($51) -+6^}-9; ($52)xx-3)+4[3-x] (53) 8ab}+12abc (54) 3ax?+6axy +3ay?; (56)2x2+4x+2; (55)x2-16; (57)x2-9; n (58) (m-5){}+2(m}-5)+1; (59)m(a-3)+2(a-3); (60) ab-ab; $61) (m+n){}-6(m+n)+9 (62) 9a}(x-y)+4b}(y-x); (63) 8a^2-2; ($64) ab-2a{b^{}+ab^3; (65)a-1 $66) ab-2ab+b;$$$ 36 $68) x2(m-2)+y}(2-m); ($67) 3a}-6ab+3} (69) x2v-4y; (70) (a-3b)(a-b)+b^}; (71) 12xyz-9x?? $72) (a+b) -12(a+b)+36 (73) 9r^{}+6mn+m^}; (74)a-16a; (75) 2$-12a}b+18 b^}; 4 ($76) (r-)-8x+8x+1$ $77) 3-9x-30;$ $78) }-2ab+b^$}-1$ (79) 3ax}+6axy+3a} (80) 12x2-3y}; (81) 4xy-4x2y-y}; (82) m(x-y)+n}(y-x); (83) 2x-8: (84) 3-2x2+x} (85)a-25; (86) 2x}+4xy+2y}; (87) 2x(x+y)-6y(x+y) (88) (5m+n)-(m-5n)} (89)x-9; (90) 2a-4a}+2a; (91)-r+4y}; (92)-101×190+101^}+95^}; (93) -3m+12ma-12; 1n (94) a(x-y)+b?(y-x); (95) ab-a'b+-ab; (96) a2(x+)-4b(x+y); 4 (97) 4x2y-9y; $98) --6 -9;$ (99) xy+3y; (100)ax?-4a; (101)-2x+2x; (102)ax2+2a{x+a} (103)nn-9mn; (104)(x+2v)(2y-3x)+4}; (105) sh}-12abe; (106)9x}-a}+2a-1; ($107)2(x-y)-(y-$x)}; (108) -3ma?+12ma-12m (109)x(x-y)+y(y-x) (110) 5a^{}b-10ab{}+55^}; (111)3n}-6m; 。 (112)ax?-2axy+ay}; (113) r^y-36y; (114)mn{}+6mn+9m; $115)9a}-ab};$ (116)(x+2y)}-8xy (117) am-an+at (118)2a^}-12a+18; ($$19) -3ab^$+6a}b}-3$$ (120)x2--ax+ay; (122) 3ax2+6axy+3ay}; (121)a2-45}; ($123) 8a -2a^b}; (125)x2y-2xy}+; (124)2x'+4xy+2x} (126)(a*+4) -16a}; N ($127)a’(a-b)+b(a-b); (128)(m2+1){-4m}; (129)m(m-5)+2(5-m)2}; (131)4r{y-4x2+xy3; (130)-4+8x-4x; (132) 3x-12xy2; (133)3x2+6xy+3y2} (134) 'b-4ab; (135)2ax2-18a; $136) &-2a2^{+ (137) -6xy2+9x2y+y3; (138)m-81n; (139)(x-1)+b(1-x) 140)-3x+24$-48; ; (141)-2a+; (142) 25(×+y){2}-49(x-y){; (143) 2am2-8a; (144) (x-y){}+4xy (145) 4xy-4xy- (146) m(x-y)+n}(y-x); ; ($147) -$}+6-9;$$ (148)a{x-y)+4(y-x; (149)-4m+16-26w; (150) 2(a-3){}-$a+3; (151)9r}-{-2yl}; (152) 5a’b-10ab$}+$3; (153)3x}-12; (155)-a+2a?-a; (154)xv-2xy+y (156) (2m+n)}-(m+n)}; (158)(x2+4)2-16x?; 157)-3x+12xy-12}; (159)-16; (160) a^{b-10ab+25b; (161)-1; (162)2x-4x+2 (163)4x-2xy (164)(a+b)}-c2}; (165)x-9; 9 (167)xy*-xy; ($166) 3^}-6qb+3} (168)2x}-220+50;$ 169) 3ax2}-6ax+3a; (170) (+y) -4x2y}; (171) 6a^{}b-9ab^{}+15ab; $172) 16(-b -9(a+$2}; ($173) 2x-4xy+2}; (174) 4ax2-16a; (175)2x2y-8xy; (176)(m-5)}+2(m-5)+1; (177)ay?-3ay+2a; (178) 3(x+y)(x-y)-(y-x)}; (179)25x2-16y}; (180)(a-b)(x-y)-(b-a)(x+y) (181)-xv*+4xyz-4xy (182)9(m+n)-(n-n)}}; (183)(x-1)(x-3)+1 10