(-x2)(6x-6)
4 1 (—ab2+4ab)•—ab 5 4
(9×102)×(-6×107)
7a(5a-7b) (7x+7y)(-2x)
2x(2x-4)-x(3x-4)+4x(3x-1)
(-8a2b4)(-7a) (-2x)3(4x4y3)
-4x2•2x4 8y•(-2xy3) (4x)3•7x4
(2a)3•(-4a)3
(-x2)(-2x+3)
-7a3•3a2 6a(3a-6b) -5y•2y
(9x-9y)(-3x)
5 1
(—ab2-4ab)•—ab3 4x(x-3)+2x(x+3)-2x(2x-2)
6 5
(4×105)×(-6×103) (-7a3b)(-2a)
-5x•3x3 5y4•(-3xy3) (-4x)2•3x3
-4x)3(2x3y5)
(
(3a)2•(4a)2 6a•3a4 -5y2•5y2
(-3x2)(-3x+6)
4 1 (—ab2-6ab)•—ab3 5 4
2a(5a+8b) (8x+3y)(-2x)
4x(x+3)+x(4x-2)-x(x-3)
(5×104)×(-5×103) (-ab)(-2a) (2x)3(2x2y2)
-8x3•5x (-4a)2•(2a)3
-9y3•(-4x4y)
8a•4a4
(3x)2•9x2
5y2•7y
(-5x2)(-8x-9)
4 1 (—ab2-6ab)•—ab 5 4
(3×103)×(-5×109)
-4a(4a+8b) (9x-7y)(-3x)
x(4x-2)+4x(x-2)+x(x+4)
(-ab4)(-9a4) (-3x)3(-4x3y4)
6x2•3x -6y•(-2x2y) (-4x)2•2x2
(2a)3•(4a)2 (-2x3)(9x-8)
-5a4•4a 9y3•7y
-4a(2a-6b) (2x+4y)(-8x)
7 1
(—ab2+2ab)•—ab 3x(x-2)-x(4x+3)+3x(x-1)
6 7
(7×105)×(-7×103) (-a2b)(-6a) (4x)2(-4x4y4)
6x4•8x 8y•(-9x3y4) (-3x)2•5x3
(-4a)2•(3a)3
(-8x4)(-8x+9)
5 1 (—ab2+2ab)•—ab2 6 5
-3a•4a3 -4y•4y3
8a(4a-4b) (7x-7y)(-2x)
3x(x-2)-3x(2x-1)-x(x+2)
(2×106)×(-7×102) (-a4b2)(-5a) (3x)2(-4x2y4)
-5x4•7x3 (-2a)3•(-2a)3
-7y•(-3xy2)
7a•8a2
(4x)3•5x3
8y•9y
-
(-5x3)(4x+1)
2 1 (—ab3-5ab)•—ab3 3 2
(8×103)×(-6×108)
-3a(7a+4b) (3x-8y)(-9x)
4x(x-1)+x(4x-4)+x(4x-4)
(-9a3b)(-7a) (4x)3(2x4y3)
-3x•4x 3y•(-4xy) (3x)3•2x4
(-3a)2•(-2a)3
(-5x4)(-3x+6)
4a2•8a -9y2•3y
-4a(6a-2b) (9x+9y)(-8x)
4 1
(—ab3+2ab)•—ab2 4x(4x+1)-x(2x-4)+x(4x-1)
3 4
(7×108)×(-4×108) (-a4b)(-6a4)
9x•6x2 3y2•(-9xy3) (4x)3•3x2
(3x)3(4x2y4)
(3a)3•(-2a)2
(-x2)(-8x-5)
4 1 (—ab2+6ab)•—ab2 5 4
-2a•4a3 -2y2•3y
-6a(7a+6b) (3x+7y)(-2x)
x(x-1)-x(3x+4)+x(4x-1)
(4×107)×(-8×107) (-9ab)(-7a) (4x)2(4x4y5)
7x3•2x (-2a)3•(-4a)2
6y3•(-5xy)
-6a4•4a
2•7x4
-5y•5y
(4x)
(-9x2)(9x+8)
4 1 (—ab3+4ab)•—ab3 5 4
(2×109)×(-4×104)
6a(2a+7b) (9x+6y)(-2x)
x(x+1)+2x(4x+1)+x(4x-2)
(-8ab)(-5a2) (3x)2(-2x2y4)
9x3•8x -5y4•(-9x2y) (3x)3•4x2
(-3a)3•(-3a)3
7a•7a 4y•6y
因篇幅问题不能全部显示,请点此查看更多更全内容