整式的乘法和因式分解純計(jì)算題100道

1、-I單項(xiàng)式乘以單項(xiàng)式1.(3r)2工弓2. 3口' 4£?16. 7.v - 2.沁17. 3f?臚-(4口協(xié)-I、亠5. r19、X)"5* X * .VJ C-J X)* 2xy20x (巾湖'(-處ly2b GJx1Q")x(4x12)二-2a)- - (-3ay7> 4夕 3et8.* (加)9. 3X - 3工了2,. O.rv)" - (-4X)10、4bc - abc1lU (13x10) (3xLO)12、2x - (=3+于27 C-5av) C3.vv)*13. Ay -15 X (2k&) - (一4

2、k 1 o')29、 4.v'v - 2.r*(-y)2-(-2血:尸31、(-fab) q-3血護(hù)-I46、2© (-斗門)-(-S.C)35. 4xy-8(2處3'(2.疔4S. 6£r"6 -(X - yf ；血'-(y - x)"49s(-4.rv)(一x'r)'寸 F38.)(-2-oVc)7350. (2x10) - (6.25x100 * (8x10")妙(-4rv) C-xr') * (jy") 卻* 呵匸(亠亍) (-2xy)IP 13 41v(-2x'

3、yy-(-xyz)寧一xU253.；52> (-1.5xlO'r x(4xlOVx(2xlO')''53.切給（3力y 十-67疔 V處）&護(hù)（4口）'；4：. -X*y* * (一也)43. -6fifn - (X- I')* * iy-xf2 $ 44、12.5x10 - (-4x10') (3x10)45- (- (-fldf')' - (-a')46、2.n- - (- ，(一3-工*")232*-!54x (-.Y)r<(-2jy-C-2xv)- (-S.v/y ；(LSxl

4、0Jx(5xlO')-(2.5 xl0)x(4xlO)2a3b33c)、計(jì)算:4xy3 2x(2) 2x2y3?2xyz516(3) 4y (-2xy3);(3)3.2mn2( 0.125m2n3)1(4) ( -xyz)|yz3)5(4)(2103) (3 106)13212(5) (-x y )( 4X y23.2)(6) 8xnyn 1?2y(5)5x (?ax) ( 2.25axy) (1.2x2 y2)2 2(6) -x2y (50.5xy)2(2x)33xy(7)0.25xy3)(4 xy)(0.5x2 y3)5(8) ( 2x2y)(2xy2)(x2y2)xyz(5xy)

5、3x2y 12x3 ( - y2)4325a3b ( 3b)22(6ab)2(ab)32ab3 ( 4a)2c 2n 1 n 13x y1 n 2-X y610)2a2(x3 1 22y)3 -ab2(2y3x)3(1)4xy2 (-x2yz3)8332133qab)( 2ybc)3. 3(3) 5x (1ax) ( 2.25axy)(1.2x2y2)2 2 2 3(4) x y ( 0.5xy)( 2x)53xy8.(4a2b)捲b2,a£)(9) . (-2a2b) 3 (3b2- 4a+6)23(5) ( 5xy) 3x y 12x7 2)4y )3225a b ( 3b)(

6、6ab) ( ab)32ab ( 4a)10.2ab (5ab+3a2b)11.單項(xiàng)式乘多項(xiàng)式2(1)(2xy 3xy) 2xy;2 2(2) x(2x + 3x - 2); (3) 2ab(ab 3ab - 1);12.計(jì)算：2x (x2- x+3)13. (-4a3+12a2b- 7a3b3) (- 4a2)3 n+1 b(4)( 4an+1 2 ab.(5)-10mn - (2m2n-3mn).(6)(-4ax)2 (5a2-3ax2).2232 2222(3x 2y-2xy2) (-3x y ) . (8)7a(2ab-3b).(9) x(x 2-1)+2x 2(x+1)-3x(2x-

7、5).14.計(jì)算：xy2 (3x2y - xy2+y)15. (- 2ab) (3a2- 2ab- 4b2)-!2(1)(42 21. (3x)( x 2x 1)3(2x 4x 8)2 3 2 2 5 2 2 (3)( -n 7mn+-n ) +-n ;(4)(12x4 6 c24 “3 5、 2 3 y 8x y 16x y )十 4x y .2(a2b2 ab 1)3ab(1ab).(3x2)(x2 2x 3)323x(x3 2x25)28m(m 3m 4)m2(m3).7x(2x 1) 3x(4x1) 2x(x 3)1多項(xiàng)式與多項(xiàng)式相乘、計(jì)算1、(x + 2) (x + 6)2、(x +

8、 5) (x+ 6)3、(x + 5) (x 7)4 、(x+2)(x 3)7. ( 2a2b)2(ab2a2ba3).,2,_2,3(x) ( 2x y)C 2 .63 八2x (x y 1)(1)(85a) -( a);(2)(xy)7 十(y X廠;(3)(4)x5、( x 2) (x 6)6、(-x 5y) (x 7y);7、(X- 3y)(x+7y)計(jì)算:& (2x y) (3x+ 2y);9、(3x 1)(2x+1)10、(2x 3) (3x 4);2 2 4125a b) r 4ab) r 10ab);45332a b c - ( 2ab) ( -ac);-!11、(3x

9、+2y) (3x 4y)12、(-8X+5) (5x 4),;13、( 4x y)( 5x+ 2y) 14、(-2a 3b) (4a 2b) 15、( 2x 3y)( 4X2 + 6xy+ 9);(3)( x+ 3)( X + 4) (X 1)( X 2)4)( 3x+ 2y)( 2x+ 3y) (x 3y)( 3x+ 4y)1716、(a2 + 2)( a4 2a2 + 4)18、(y 1)( y 2)( y3)、(3x2 + 2x+ 1)( 2x2 + 3x 1)(5)( x + 2)( x + 3) (x + 6)( x 1)(1)(m+ 1)(2m 1) ；(2)(2a 3b)(3a

10、+ 2b);20、(x+2) (x 3) x (x 2)19、(a 4) (a+3) (2 a+1) (a 3)(2x 3y)(4x 2 + 6xy + 9y2);(1)(如)(討2ab+爭+ 1);21. (x 3) (x2一 6x+1) x (x2一 x 3)22. (a 2b)2 + (a b)(a + b) 2(a 3b)(a b),2 2 2 2(2)3ab(a b ab ab) ab (2a 3ab + 2a).2(2x y)(x + y);(1)( 2x + 3y)( 3x2y)2) ( 3x 1)( 4x + 5)(11)6x(a b) + 4y(b a);(12)(a2 ab

11、)+ c(a b);(5)a(a 3) + (2 a)(2 + a).(13)4q(1 p )3 + 2(p 1)2三、因式分解& 15a3 10a2212abc 3bc卻29a24b2 6p(p q) 4q(p q)m(a 3) 2(3 a)(5)3x3 + 6x4;(6)4a3b2 10ab3c ；x2y4y16(5)4x2 y2 ；一16+ a2b2；一3ma3 + 6ma2 12ma;(8)6 p(p + q) 4q( p+ q).(7)100x2 9y2;(8)(x + 2y)2 (x y)2;(9)x4 + X3+ x;(10)x(x y) + y(y x)；(9)16 b

12、4.(10)a3 9a;(11)3m(2x y)2 3mn2;(12)(a b)b2 4(a b).(3)x32x2y2xy(4) x2(1) x212x 362xy x2 y2(5)(x222y )4x2(6) x2cc 2xy 30 y32.24x3 12x2 + 28x33.6(m n )3 12(n m)234.3(a b)2 + 6(b a)ax2232a x a2 23x 6xy 3y(7)23p - 6pq；2(6) 2x2+8x+835.18(a + b)3 12b(b a)236.(2a + b)(2a 3b) 3a(2a + b)37.(x2 + 6x)2 (2x 4)22

13、2am - 8a;3 2 2(8) 4x +4x y+xy38.9(m + n )2 (m n)239.(2x + 3y)2 140.9(a b)2 16(a + b)241.(x+ y)2 16(x y)242.16x4 + 81y443. 3ax2 3ay2m2 2mnn24(2) x 1657.56x3yz+14x2y2z 21xy2z258. mn(m n) m(n m)59.- (2a- b)2+4(a - b)24244.2x3 8x45. 7x2 6346. (a2 + b2)2 4a2b260.4xy - (x2- 4y2)61. -3ma3+6ma2- 12ma62. a2(x- y)+b2(y- x)47. (m+ n )2 6(m +n)+ 948.(3)(a b)2 2(a b) +1;49. 4xy2 4x2y y350. x2 4y2 + 4xy51.(x y)210(x y) 25 ；63.35(x y) 10(yx)264.18b(a b)212(ab)365.72x2n-4xn52.16a472a2b281b4 ；53. (a2+ 4)2 16a254.-4x3+16x2-26x66.2a(x a) 4b(ax)6c(x a) 67.m4 16n468.2 29(m n) 16(m n