1、分解因式:xy-x-y+1=_____?2、(2—x)³=a0+a1x+a2x²+a3x³,则(a0+a2)²—(a1+a3)³的值为_____?
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![1、分解因式:xy-x-y+1=_____?2、(2—x)³=a0+a1x+a2x²+a3x³,则(a0+a2)²—(a1+a3)³的值为_____?](/uploads/image/z/2083391-71-1.jpg?t=1%E3%80%81%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9Axy-x-y%2B1%3D_____%3F2%E3%80%81%EF%BC%882%E2%80%94x%EF%BC%89%26sup3%3B%3Da0%2Ba1x%2Ba2x%26sup2%3B%2Ba3x%26sup3%3B%2C%E5%88%99%EF%BC%88a0%2Ba2%EF%BC%89%26sup2%3B%E2%80%94%EF%BC%88a1%2Ba3%EF%BC%89%26sup3%3B%E7%9A%84%E5%80%BC%E4%B8%BA_____%3F)
1、分解因式:xy-x-y+1=_____?2、(2—x)³=a0+a1x+a2x²+a3x³,则(a0+a2)²—(a1+a3)³的值为_____?
1、分解因式:xy-x-y+1=_____?
2、(2—x)³=a0+a1x+a2x²+a3x³,则(a0+a2)²—(a1+a3)³的值为_____?
1、分解因式:xy-x-y+1=_____?2、(2—x)³=a0+a1x+a2x²+a3x³,则(a0+a2)²—(a1+a3)³的值为_____?
1.(x-1)(y-1)
2.(2—x)³=8-12x+6x^2-x^3
a0=8;
a1=-12;
a2=6
a3=-1;
值为27
1,(1-x)(1-y)
2,
1、(y-x)(x-1)
2、不知道
我不知道对不对
<1>(x-1)(y-1)
<2> 2393
1、(xy-x)-(y-1)=x(y-1)-(y-1)=(x-1)(y-1)
2、(2-x)= - x^3 + 6x^2 - 12X + 8,则a3=-1,a2=6, a1=-12,a0=8
(a0+a2)^2 - (a1+a3)^3= (8+6)^2-(-12-1)^3
1 xy-x-y+1=xy-x-(y-1)=x(y-1)-(y-1)=(x-1)(y-1)
2 (2-x)^3 =a0+a1x+a2x²+a3x³
(2-x)^3=8-8x+4x^2-x^3
a0=8 a1=-8 a2=4 a3=-1
(a0+a2)^2-(a1+a3)^3=(8+4)^2-(-8-1)^3=873
1.分解因式:xy-x-y+1=(x-1)(y-1)
2.(2—x)^3=(2-x)^2(2-x)=8-12x+6x^2-x^3
所以a0=8,a1=-12,a2=6,a3=1
因此(a0+a2)²—(a1+a3)³
=14^2-(-11)^3
=14^2+11^3
=196+1331
= 1527