初一数学下册平方差公式专项练习 43.docx
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初一数学下册平方差公式专项练习 43.docx
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初一数学下册平方差公式专项练习43
(9-7a)(9+7a)(0.1x+0.7)(0.1x-0.7)
(a+5)(a-5)(x+6)(x-6)(x2+36)
(ab+4)(ab-4)(a+1)(a-1)(a2+1)
(-7m-n)(-7m+n)(an+8b)(an-8b)
(x+9y)(x-9y)(2mn-3n)(2mn+3n)
(y+6z)(y-6z)(-3x-y)(-3x+y)
(7x+7)(7x-7)(8x-y)(8x+y)
(-5x+9)(-5x-9)(7a-2b)(7a+2b)
(1-10a)(1+10a)(0.7x+0.2)(0.7x-0.2)
(m-2n)(m+2n)-8n2(-4k+5)(-4k-5)
(4x+8)(4x-8)(5x-6y)(5x+6y)
(5+10x)(5-10x)4x2-(y+4x)(y-4x)
(7-9a)(7+9a)(0.3x+0.5)(0.3x-0.5)
(a+8)(a-8)(x+5)(x-5)(x2+25)
(ab+7)(ab-7)(a+2)(a-2)(a2+4)
(-3m-4n)(-3m+4n)(an+5b)(an-5b)
(x+5y)(x-5y)(4mn-3n)(4mn+3n)
(y+7z)(y-7z)(-7x-4y)(-7x+4y)
(4x+6)(4x-6)(x-8y)(x+8y)
(-5x+10)(-5x-10)(2a-b)(2a+b)
(1-9a)(1+9a)(0.7x+0.7)(0.7x-0.7)
(8m-3n)(8m+3n)-6n2(-k+6)(-k-6)
(4x+7)(4x-7)(6x-5y)(6x+5y)
(7+6x)(7-6x)9x2+(y+5x)(y-5x)
(7-4a)(7+4a)(0.6x+0.1)(0.6x-0.1)
(a+9)(a-9)(x+2)(x-2)(x2+4)
(ab+1)(ab-1)(a+5)(a-5)(a2+25)
(-6m-4n)(-6m+4n)(an+2b)(an-2b)
(x+7y)(x-7y)(9mn-2n)(9mn+2n)
(y+3z)(y-3z)(-3x-4y)(-3x+4y)
(5x+3)(5x-3)(4x-7y)(4x+7y)
(-5x+5)(-5x-5)(6a-b)(6a+b)
(9-2a)(9+2a)(0.7x+0.7)(0.7x-0.7)
(4m-5n)(4m+5n)-4n2(-7k+6)(-7k-6)
(6x+3)(6x-3)(6x-3y)(6x+3y)
(8+x)(8-x)3x2-(y+2x)(y-2x)
(5-2a)(5+2a)(0.3x+0.8)(0.3x-0.8)
(a+4)(a-4)(x+7)(x-7)(x2+49)
(ab+7)(ab-7)(a+3)(a-3)(a2+9)
(-4m-2n)(-4m+2n)(an+b)(an-b)
(x+8y)(x-8y)(9mn-2n)(9mn+2n)
(y+3z)(y-3z)(-8x-y)(-8x+y)
(9x+1)(9x-1)(9x-5y)(9x+5y)
(-9x+6)(-9x-6)(6a-4b)(6a+4b)
(8-7a)(8+7a)(0.6x+0.6)(0.6x-0.6)
(m-3n)(m+3n)+3n2(-k+8)(-k-8)
(9x+6)(9x-6)(8x-5y)(8x+5y)
(7+8x)(7-8x)9x2-(y+3x)(y-3x)
(8-7a)(8+7a)(0.4x+0.6)(0.4x-0.6)
(a+1)(a-1)(x+7)(x-7)(x2+49)
(ab+7)(ab-7)(a+3)(a-3)(a2+9)
(-4m-2n)(-4m+2n)(an+5b)(an-5b)
(x+9y)(x-9y)(6mn-3n)(6mn+3n)
(y+6z)(y-6z)(-4x-y)(-4x+y)
(6x+2)(6x-2)(6x-8y)(6x+8y)
(-9x+10)(-9x-10)(4a-3b)(4a+3b)
(10-a)(10+a)(0.7x+1)(0.7x-1)
(7m-3n)(7m+3n)-3n2(-6k+2)(-6k-2)
(6x+6)(6x-6)(3x-3y)(3x+3y)
(4+7x)(4-7x)7x2-(y+6x)(y-6x)
(9-a)(9+a)(0.4x+0.9)(0.4x-0.9)
(a+1)(a-1)(x+7)(x-7)(x2+49)
(ab+5)(ab-5)(a+5)(a-5)(a2+25)
(-8m-4n)(-8m+4n)(an+b)(an-b)
(x+6y)(x-6y)(7mn-n)(7mn+n)
(y+9z)(y-9z)(-4x-3y)(-4x+3y)
(4x+8)(4x-8)(x-2y)(x+2y)
(-8x+7)(-8x-7)(2a-5b)(2a+5b)
(6-9a)(6+9a)(0.6x+0.8)(0.6x-0.8)
(m-3n)(m+3n)+8n2(-5k+4)(-5k-4)
(3x+6)(3x-6)(x-6y)(x+6y)
(1+6x)(1-6x)7x2+(y+6x)(y-6x)
(2-3a)(2+3a)(0.3x+0.4)(0.3x-0.4)
(a+3)(a-3)(x+6)(x-6)(x2+36)
(ab+2)(ab-2)(a+2)(a-2)(a2+4)
(-4m-2n)(-4m+2n)(an+9b)(an-9b)
(x+9y)(x-9y)(4mn-4n)(4mn+4n)
(y+3z)(y-3z)(-5x-3y)(-5x+3y)
(2x+7)(2x-7)(6x-8y)(6x+8y)
(-5x+9)(-5x-9)(a-5b)(a+5b)
(2-8a)(2+8a)(0.7x+0.5)(0.7x-0.5)
(2m-5n)(2m+5n)-6n2(-8k+8)(-8k-8)
(4x+4)(4x-4)(9x-3y)(9x+3y)
(9+5x)(9-5x)3x2+(y+6x)(y-6x)
(8-6a)(8+6a)(0.3x+1)(0.3x-1)
(a+2)(a-2)(x+2)(x-2)(x2+4)
(ab+2)(ab-2)(a+1)(a-1)(a2+1)
(-8m-5n)(-8m+5n)(an+8b)(an-8b)
(x+5y)(x-5y)(5mn-2n)(5mn+2n)
(y+4z)(y-4z)(-3x-5y)(-3x+5y)
(6x+4)(6x-4)(3x-8y)(3x+8y)
(-2x+8)(-2x-8)(a-2b)(a+2b)
(3-7a)(3+7a)(0.5x+0.5)(0.5x-0.5)
(9m-4n)(9m+4n)-4n2(-7k+7)(-7k-7)
(7x+2)(7x-2)(4x-6y)(4x+6y)
(6+6x)(6-6x)8x2+(y+6x)(y-6x)
(2-9a)(2+9a)(0.4x+0.7)(0.4x-0.7)
(a+10)(a-10)(x+7)(x-7)(x2+49)
(ab+8)(ab-8)(a+4)(a-4)(a2+16)
(-4m-3n)(-4m+3n)(an+8b)(an-8b)
(x+6y)(x-6y)(8mn-2n)(8mn+2n)
(y+6z)(y-6z)(-8x-2y)(-8x+2y)
(6x+3)(6x-3)(9x-6y)(9x+6y)
(-x+10)(-x-10)(6a-4b)(6a+4b)
(3-4a)(3+4a)(0.1x+0.7)(0.1x-0.7)
(m-n)(m+n)+9n2(-3k+5)(-3k-5)
(5x+1)(5x-1)(8x-y)(8x+y)
(8+2x)(8-2x)7x2-(y+2x)(y-2x)
(2-a)(2+a)(0.2x+0.4)(0.2x-0.4)
(a+10)(a-10)(x+9)(x-9)(x2+81)
(ab+5)(ab-5)(a+4)(a-4)(a2+16)
(-9m-n)(-9m+n)(an+7b)(an-7b)
(x+7y)(x-7y)(5mn-2n)(5mn+2n)
(y+8z)(y-8z)(-4x-5y)(-4x+5y)
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