人教版初二数学上册乘法公式综合练习题大全49.docx
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人教版初二数学上册乘法公式综合练习题大全49
(a-4b)(4b+a)(-b-6)(b+6)
94×89701×699
(a+8b)2(4x-9y)2(-2m-4)2
20022772(p-5q)2
(2x-2)2+(4x-5)2(2x+7y+1)(2x+7y-1)2
(3x-y-1)2[(4x+9)(4x-9)]2
先化简,再求值。
(3x+7)2-(2x-y)(x+2y),其中x=-6,y=9
11
(—x+y)(—x-y)(xy+4)(xy-4)
88
(5a-b)(b+5a)(-b-5)(b+5)
92×89802×799
(3a-6b)2(x-5)2(4m+5)2
61249972(p+4q)2
(x+2)2-(x-7)2(x-y+4)(x-y-4)2
(4x-4y+5)2[(4x+4)(4x-4)]2
先化简,再求值。
(x+6y)2+(3x-4y)(4x+3y),其中x=-2,y=5
55
(—x+y)(—x-y)(xy+6)(xy-6)
66
(a-b)(b+a)(-b-7)(b+7)
31×29304×299
(2a+2)2(x-3)2(-m-6n)2
403269982(-3p-7q)2
(x+5)2+(3x-7)2(x-y+4)(x-y-4)2
(x+y-2)2[(3x+8)(3x-8)]2
先化简,再求值。
(3x+7)2+(5x-y)(x+5y),其中x=-6,y=9
77
(—x+y)(—x-y)(4xy+2)(4xy-2)
66
(a-5b)(5b+a)(-b-5)(b+5)
31×29701×699
(3a-7b)2(x+2y)2(-4m-3n)2
2225972(p+9q)2
(x-10)2-(4x-9)2(2x+5y+5)(2x+5y-5)2
(3x-4y-2)2[(x+5)(x-5)]2
先化简,再求值。
(3x+6)2-(6x-y)(x+6y),其中x=6,y=1
11
(—x+y)(—x-y)(2xy+6)(2xy-6)
55
(3a-b)(b+3a)(-b-10)(b+10)
82×79903×899
(a+3b)2(4x-5)2(-4m+7n)2
9022692(2p+7q)2
(3x-6)2+(4x-3)2(3x-6y+4)(3x-6y-4)2
(4x-2y-3)2[(x+7)(x-7)]2
先化简,再求值。
(x-8y)2-(4x-6y)(6x+4y),其中x=4,y=11
11
(—x+y)(—x-y)(xy+6)(xy-6)
22
(a-b)(b+a)(-6b-6)(6b+6)
74×69203×199
(a-4b)2(2x-7)2(-3m+8n)2
10012882(2p-5)2
(3x-7)2+(2x-5)2(4x-y+2)(4x-y-2)2
(x-y-3)2[(2x+8)(2x-8)]2
先化简,再求值。
(x+3y)2+(x-y)(x+y),其中x=-6,y=-1
22
(—x+y)(—x-y)(3xy+2)(3xy-2)
33
(5a-6b)(6b+5a)(-6b-1)(6b+1)
54×49903×899
(3a-9b)2(2x-3y)2(-4m+3n)2
40223992(-3p+3q)2
(2x-2)2-(x-3)2(x+y+3)(x+y-3)2
(x-y+2)2[(3x+1)(3x-1)]2
先化简,再求值。
(x-5y)2+(3x-3y)(3x+3y),其中x=-4,y=5
77
(—x+y)(—x-y)(xy+1)(xy-1)
66
(4a-3b)(3b+4a)(-b-5)(b+5)
72×69501×499
(3a+5)2(x+8)2(3m-7n)2
812672(p-2)2
(2x-3)2-(x-2)2(4x+8y+7)(4x+8y-7)2
(x-y-2)2[(2x+5)(2x-5)]2
先化简,再求值。
(3x-6y)2+(x-2y)(2x+y),其中x=2,y=-3
11
(—x+y)(—x-y)(xy+5)(xy-5)
77
(a-2b)(2b+a)(-6b-9)(6b+9)
53×49502×499
(2a-4)2(x-5y)2(4m-3n)2
9032882(-4p-2q)2
(2x+8)2+(3x+8)2(3x+6y+4)(3x+6y-4)2
(x+5y+5)2[(2x+8)(2x-8)]2
先化简,再求值。
(x+3y)2+(x-6y)(6x+y),其中x=6,y=7
44
(—x+y)(—x-y)(4xy+4)(4xy-4)
55
(a-3b)(3b+a)(-3b-1)(3b+1)
62×59401×399
(a-2b)2(x+3y)2(m-7)2
10222992(p+9q)2
(x-9)2-(x-9)2(x+y+1)(x+y-1)2
(4x+y-4)2[(4x+7)(4x-7)]2
先化简,再求值。
(4x-7y)2-(x-4y)(4x+y),其中x=2,y=-1
11
(—x+y)(—x-y)(xy+1)(xy-1)
88
(a-2b)(2b+a)(-b-7)(b+7)
62×59902×899
(a-3)2(3x-2)2(-m+4n)2
400321982(2p+3)2
(2x-1)2+(3x+2)2(x-6y+6)(x-6y-6)2
(x+3y-5)2[(x+5)(x-5)]2
先化简,再求值。
(x-9y)2-(6x-y)(x+6y),其中x=10,y=5
11
(—x+y)(—x-y)(xy+3)(xy-3)
77
(a-b)(b+a)(-b-4)(b+4)
92×89902×899
(a+8b)2(x-9)2(-4m-2)2
300324992(-p+7)2
(2x+3)2-(3x-10)2(2x+5y+7)(2x+5y-7)2
(x-5y+4)2[(2x+4)(2x-4)]2
先化简,再求值。
(4x-3y)2-(x-6y)(6x+y),其中x=-10,y=11
55
(—x+y)(—x-y)(xy+8)(xy-8)
66
(2a-b)(b+2a)(-b-5)(b+5)
44×39102×99
(2a+5)2(2x+5y)2(m+8)2
302219992(2p-6q)2
(x+9)2+(4x+7)2(x-5y+6)(x-5y-6)2
(x+2y-5)2[(x+5)(x-5)]2
先化简,再求值。
(x-5y)2-(x-5y)(5x+y),其中x=-8,y=-1
33
(—x+y)(—x-y)(xy+4)(xy-4)
22
(a-5b)(5b+a)(-6b-7)(6b+7)
61×59902×899
(2a-6)2(2x-5y)2(-4m+3)2
702279992(-p+7)2
(x+6)2+(2x-6)2(x+5y+10)(x+5y-10)2
(x-y-3)2[(4x+1)(4x-1)]2
先化简,再求值。
(3x+7)2-(6x-y)(x+6y),其中x=-4,y=7
44
(—x+y)(—x-y)(3xy+2)(3xy-2)
33
(2a-2b)(2b+2a)(-4b-5)(4b+5)
32×29501×499
(2a+6b)2(x+8y)2(m-8)2
92249972(p+6)2
(x+10)2-(2x-5)2(x-5y+7)(x-5y-7)2
(x+2y-4)2[(x+5)(x-5)]2
先化简,再求值。
(3x+2)2+(x-6y)(6x+y),其中x=-6,y=-7
22
(—x+y)(—x-y)(xy+6)(xy-6)
33
(3a-3b)(3b+3a)(-b-8)(b+8)
43×39903×899
(2a-7b)2(2x-8y)2(4m-8n)2
90326992(-p-2q)2
(3x+3)2+(3x-2)2(x-y+4)(x-y-4)2
(x+4y+5)2[(x+5)(x-5)]2
先化简,再求值。
(x-7y)2-(6x-y)(x+6y),其中x=-10,y=5
99
(—x+y)(—x-y)(xy+8)(xy-8)
88
(6a-5b)(5b+6a)(-b-1)(b+1)
54×49603×599
(3a-2)2(3x-7y)2(m+5n)2
80032482(p+7q)2
(x-10)2+(4x-6)2(x-5y+1)(x-5y-1)2
(4x-3y-1)2[(2x+4)(2x-4)]2
先化简,再求值。
(3x+9)2+(x-y)(x+y),其中x=2,y=5
44
(—x+y)(—x-y)(xy+2)(xy-2)
33
(a-b)(b+a)(-b-8)(b+8)
82×79803×799
(a-8)2(x+6y)2(m-8)2
700325992(-p+4q)2
(2x+3)2+(3x-6)2(3x-y+8)(3x-y-8)2
(4x-y+1)2[(2x+2)(2x-2)]2
先化简,再求值。
(x-7y)2-(x-y)(x+y),其中x=-2,y=3
11
(—x+y)(—x-y)(xy+7)(xy-7)
66
(2a-b)(b+2a)(-2b-3)(2b+3)
54×49302×299
(3a+9)2(x+3y)2(-2m-3)2
90022992(4p+2q)2
(x+8)2+(2x+2)2(x-7y+9)(x-7y-9)2
(x+2y-2)2[(x+1)(x-1)]2
先化简,再求值。
(3x+9)2+(x-5y)(5x+y),其中x=6,y=5
77
(—x+y)(—x-y)(xy+8)(xy-8)
88
(4a-6b)(6b+4a)(-b-10)(b+10)
94×89501×499
(a-9)2(x-6)2(3m+4)2
1000221992(-4p+4)2
(3x-4)2+(4x+7)2(4x+y+3)(4x+y-3)2