中考计算题精选因式分解强烈推荐 19.docx
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中考计算题精选因式分解强烈推荐19
2x3-8x2+8x
(a-4b)2-(4a+2b)2
8a2-8a+2
化简并求值:
3(m+n)2+(3m+n)(m-2n),其中m=1,n=-2
化简:
(x+1)(x-1)-3(x2-5)
分解因式:
25x3﹣36x=
a2b+2a
4x3+16x2+16x
50x2-25
16+24(x-y)+9(x-y)2
4-16x2
2x3+4x2+2x
(a-4b)2-(3a+2b)2
2a2-8a+8
化简并求值:
3(m+n)2+(3m+n)(m-3n),其中m=1,n=-3
化简:
(x+4)(x-4)-2(x2-3)
分解因式:
9x3﹣25x=
a2b+3a
16x3-32x2+16x
27x2-9
16+40(x-y)+25(x-y)2
4-4x2
3x3+12x2+12x
(2a+4b)2-(4a-2b)2
12a2-24a+12
化简并求值:
(m+n)2+(m+n)(m-2n),其中m=2,n=-1
化简:
(x+3)(x-3)-3(x2-4)
分解因式:
4x3﹣x=
a2b+3a
4x3+16x2+16x
16x2-16
36-12(x-y)+(x-y)2
4-16x2
2x3-8x2+8x
(a+3b)2-(3a-2b)2
12a2-24a+12
化简并求值:
4(m+n)2+(m+n)(m-3n),其中m=2,n=-1
化简:
(x+4)(x-4)-3(x2-3)
分解因式:
9x3﹣25x=
a3b+7a
x3-2x2+x
3x2-1
4+16(x-y)+16(x-y)2
4-x2
8x3-8x2+2x
(2a+3b)2-(4a-2b)2
2a2+4a+2
化简并求值:
3(m+n)2+(3m+n)(m-2n),其中m=1,n=-1
化简:
(x+4)(x-4)-2(x2-2)
分解因式:
4x3﹣4x=
a3b+8a
9x3-30x2+25x
12x2-4
9-18(x-y)+9(x-y)2
4-4x2
12x3+24x2+12x
(2a+4b)2-(4a-b)2
3a2+6a+3
化简并求值:
2(m+n)2+(2m+n)(m-2n),其中m=3,n=-1
化简:
(x+3)(x-3)-2(x2-5)
分解因式:
4x3﹣16x=
ab+3a
4x3+4x2+x
4x2-4
1-6(x-y)+9(x-y)2
16-16x2
12x3-24x2+12x
(a-4b)2-(3a-2b)2
2a2-8a+8
化简并求值:
(m+n)2+(3m+n)(m-2n),其中m=3,n=-1
化简:
(x+2)(x-2)-3(x2-1)
分解因式:
x3﹣25x=
a3b+5a
x3+10x2+25x
12x2-4
4-12(x-y)+9(x-y)2
4-x2
12x3-12x2+3x
(2a-3b)2-(3a+b)2
8a2-16a+8
化简并求值:
2(m+n)2+(m+n)(m-n),其中m=3,n=-2
化简:
(x+1)(x-1)-2(x2-4)
分解因式:
9x3﹣25x=
a3b+8a
x3+8x2+16x
75x2-25
4-16(x-y)+16(x-y)2
4-16x2
8x3+8x2+2x
(a-3b)2-(4a-b)2
8a2+8a+2
化简并求值:
2(m+n)2+(3m+n)(m-2n),其中m=2,n=-2
化简:
(x+4)(x-4)-3(x2-1)
分解因式:
9x3﹣x=
ab+a
x3+4x2+4x
8x2-4
4-12(x-y)+9(x-y)2
16-x2
8x3+16x2+8x
(a-3b)2-(4a-2b)2
12a2+24a+12
化简并求值:
4(m+n)2+(m+n)(m-3n),其中m=1,n=-1
化简:
(x+1)(x-1)-3(x2-5)
分解因式:
16x3﹣25x=
a2b+8a
x3+4x2+4x
9x2-9
1+4(x-y)+4(x-y)2
9-9x2
12x3+12x2+3x
(a+4b)2-(4a+b)2
8a2-16a+8
化简并求值:
3(m+n)2+(m+n)(m-3n),其中m=2,n=-2
化简:
(x+3)(x-3)-3(x2-5)
分解因式:
25x3﹣36x=
a2b+3a
x3+8x2+16x
x2-1
16+16(x-y)+4(x-y)2
4-4x2
8x3-8x2+2x
(2a-3b)2-(3a+b)2
2a2+8a+8
化简并求值:
(m+n)2+(2m+n)(m-3n),其中m=3,n=-1
化简:
(x+2)(x-2)-2(x2-4)