Question

谁能给我出几道初一下册数学的因式分解题啊？

我每次考试因式分解都要扣个几分，希望各位能给我出几道因式分解题写写！

Answer 1

81-x^2
1-36a^2
x^2-6ax+94^2
4x^2-100
25m^2-80m+64
0.49x^2-144y^2
y^4-y^2
3ax^2-3ay^2
4x^3-8x^2+4x
a^2-2a(b+c)+(b+c)^2
x^2+3x+2
m^2-4m+3
x^2-3xy+2y^2
x^(2)y^(2)-5x^2(y)-6x^2

Answer 2

X^2+3x

5y^3+20y

56x^3 yz+14x^2 y^2 z-21xy^2 z^2

a(x-y)-b(y-x)+c(y-x)

mn(m-n)-m(n-m)

3x^2=mx+n

2x^2 -8+8

a^2 x^2-16ax+64

(x^2 +Y^2)^2-4X^2 Y^2

4(a-b)^2-16(a+b)^2

(x+3y)^2+(2x+6y)(3y-4x)+(4x-3y)^2

x^2 -3x+2

Answer 3

5y^3+20y

56x^3 yz+14x^2 y^2 z-21xy^2 z^2

a(x-y)-b(y-x)+c(y-x)

mn(m-n)-m(n-m)

3x^2=mx+n

2x^2 -8+8

a^2 x^2-16ax+64

(x^2 +Y^2)^2-4X^2 Y^2

4(a-b)^2-16(a+b)^2

(x+3y)^2+(2x+6y)(3y-4x)+(4x-3y)^2

x^2 -3x+2
(1-x^2)(1-y^2)\+4xy
x^2-x-2y-4y^2
4x^2-4xy+y^2-44x+22y+40
x^3y^2-5x^2y^2-24xy^2
(a^2+ab+b^2)^2-9a^2b^2

Answer 4

121（x-y）^2-169（x+y）^2
a（n-1）^2-2a（n-1）+a

Answer 5

(1-x^2)(1-y^2)\+4xy
x^2-x-2y-4y^2
4x^2-4xy+y^2-44x+22y+40
x^3y^2-5x^2y^2-24xy^2
(a^2+ab+b^2)^2-9a^2b^2