第四章 因式分解 练习2024-2025学年北师大版数学八年级下册

因式分解 1.6x+12 2.5a2b-10ab2 3.4x2y2-8x2y2+12x2y2 4.-3m2n+9mn 5.2x-1+3yx-1 6.7a a+b-14b a+b 7.2xx+y-4x x+y) 8.15pg-25p2g 9.ax-y +b y-x 10.9m m-n+6n n-m 11.x+22-3x+212.2a2bc-d+4ab2{d-c 13.x2-25 14.9a2-16b2 15.x+32-y2 16.4m2n2-1 17.25p-69 18.a+b2-a-b 19.x2+10x+25 20.4y2-12y+9 21.9a2+24ab+16b2 22.1-6m+9m2 23.x-y2+4x-y+4 24.25p4-60pq+36q bz-bd s+,dZI'98 9+X6I-XOI'SE SI-Dt-ot'tE OI -WII+,w9'EE t+AZI-AS'ZE t+x8-XE'IE E+XL+XZOE IZ-Dt+D'6Z SI-XZ-X '8Z 9-x+X'LZ 9+xS-X'9Z ZI+XL+X 'SZ z3-:q+q0p-00S I+x+x+X6t u6+w9+u6-,wt'8t 9-E+XOI-AXSL 9-xZ+xE-x'9t q-2q0-90+DSt b乙-db+bd-,dZt Z-x+x9-xEEb 乙-X+4b-XZh qZ+DZ+q-DIt ut-wt+uw-w'Ot E+qE+DZ+qDZ6E I+x+x+x8E Aq+xq+AD+XD'LE