中考计算题精选因式分解强烈推荐 205Word格式.docx
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化简:
(x+3)(x-3)-3(x2-4)
分解因式:
x3﹣36x=
ab+5a
4x3+12x2+9x
3x2-1
25-40(x-y)+16(x-y)2
9-x2
12x3+24x2+12x
(a+3b)2-(4a+2b)2
12a2+12a+3
4(m+n)2+(m+n)(m-2n),其中m=3,n=-2
(x+3)(x-3)-3(x2-3)
9x3﹣x=
9x3-12x2+4x
12x2-4
4-x2
(2a+3b)2-(3a-b)2
2a2+8a+8
4(m+n)2+(2m+n)(m-2n),其中m=3,n=-3
(x+2)(x-2)-3(x2-3)
25x3﹣25x=
ab+3a
9x3-6x2+x
27x2-9
25-20(x-y)+4(x-y)2
16-x2
(2a-3b)2-(4a-2b)2
12a2+24a+12
3(m+n)2+(3m+n)(m-3n),其中m=2,n=-3
(x+1)(x-1)-2(x2-3)
4x3﹣9x=
ab+2a
16x3+24x2+9x
16x2-16
36+24(x-y)+4(x-y)2
9-9x2
2x3-8x2+8x
(a-4b)2-(4a-2b)2
3a2-6a+3
3(m+n)2+(3m+n)(m-3n),其中m=1,n=-2
(x+4)(x-4)-3(x2-3)
x3﹣x=
a2b+3a
16x3+16x2+4x
32x2-16
4-8(x-y)+4(x-y)2
9-4x2
2x3+8x2+8x
(2a+4b)2-(3a-b)2
12a2-12a+3
3(m+n)2+(3m+n)(m-3n),其中m=2,n=-1
4x3﹣x=
a3b+9a
4x3-8x2+4x
18x2-9
1-2(x-y)+(x-y)2
16-16x2
3x3+6x2+3x
(a+4b)2-(3a+b)2
8a2-16a+8
2(m+n)2+(m+n)(m-2n),其中m=2,n=-2
(x+3)(x-3)-2(x2-2)
25x3﹣36x=
a2b+8a
x3+4x2+4x
25x2-25
4-20(x-y)+25(x-y)2
4-9x2
(2a-3b)2-(4a+2b)2
(x+3)(x-3)-3(x2-2)
x3﹣16x=
a3b+8a
16x3-8x2+x
9x2-9
36-48(x-y)+16(x-y)2
2x3-4x2+2x
(a-3b)2-(4a+2b)2
2a2-4a+2
(m+n)2+(3m+n)(m-2n),其中m=1,n=-3
(x+1)(x-1)-2(x2-1)
a3b+a
x3+10x2+25x
4+16(x-y)+16(x-y)2
12x3+12x2+3x
(2a+4b)2-(4a-2b)2
8a2-8a+2
3(m+n)2+(m+n)(m-n),其中m=3,n=-1
(x+1)(x-1)-2(x2-4)
9x3﹣25x=
ab+4a
x2-1
4-16(x-y)+16(x-y)2
(m+n)2+(3m+n)(m-n),其中m=2,n=-3
(x+4)(x-4)-3(x2-2)
a2b+9a
x3+6x2+9x
4x2-4
4+4(x-y)+(x-y)2
4-4x2