因式分解初二級(要过程)
因式分解初二級(要过程)
发布时间：2025-03-08 17:15:05
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答案：1.原式＝(x-3)^2+3(x-3)=(x-3)(x-3+3)=x(x-3)2原式＝(x+y)(2x-4x-4y)=(x+y)(-2x-4y)=-(x+y)(2x+4y)3原式＝bx+by+ax+ay+ax-bx-ay+by=2by+2ax=2(by+ax)4原式＝p(2p-q)-q(2p-q)+2p-q=(2p-q)(p-q+1)5原式＝6(a-b)^2+2(a-b)=2(a-b)(3a-3b+2)6原式＝(a+7)(a-7)7原式＝(8+x)(8-x)8原式＝(1+6b)(1-6b)9原式＝(m+9n)(m-9n)10原式＝(0.7p+12q)(0.7p-12q)11原式＝(11x+2y)(11x-2y)12原式＝(ap+bq)(ap-bq)13原式＝(1/2a+xy)(1/2a-xy)14原式＝(m+n+n)(m+n-n)=m(m+2n)15原式＝(13a+13b+14a+14b)(13a+13b-14a-14b)=-27(a+b)(a+b)16原式＝(2x+y+x+2y)(2x+y-x-2y)=3(x+y)(x-y)17原式＝(m^2+1)(m^2-1)=(m^2+1)(m+1)(m-1)18原式＝(x^2+y^2+xy)(x^2+y^2-xy)19原式＝(9a^2+b^2)(9a^2-b^2)=(9a^2+b^2)(3a+b)(3a-b)20原式＝3a(x^2-y^4)=3a(x+y^2)(x-y^2)21原式＝(x-1)^222原式＝(a+4)^223原式＝(1-2t)^224原式＝(m-7)^225原式＝(b-11)^226原式＝(y+1/2)^227原式＝(2a+9)^228原式＝(1/2x+y)^229原式＝(5a^2+4b^2)^230原式＝(ab-2)^231原式＝(4-xy)^232原式＝-(x-y)^233原式＝[(2-3(x-y)]^234原式＝(m+n+2m)^2=(3m+n)^235原式＝-y(4x^2-4xy+y^2)=-y(2x+y)^236原式＝(a-1)(a^2+a+1)37原式＝(2x+y)(4x^2-2xy+y^2)38原式＝-(x^3-y^3)+3xy(x-y)=-(x-y)(x^2+xy+y^2)+3xy(x-y)=-(x-y)(x^2+4xy+y^2)39原式＝27x^3+1+9x(3x+1)=(3X+1)(9x^2-3x+1)+9x(3x+1)=(3x+1)(9X^2+6X+1)=(3x+1)(3x+1)^2=(3x+1)^340原式＝x^2(x^3-1)=x^2(x-1)(x^2+x+1)
