1.a(x²-2x)²-2ax(2-x)+a2.简便计算:201²-52²+253×8513.三分之二b-九分之一b²4.(ax+by)²-2acxz-2bcyz+c²z²5.(a+2b)四次方-(a-2b)四次方
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这些完全平方公式等于多少?1.(x+y+z)²-(x-y-z)² 2.a²(a-b)²-b²(a+b)² 3.(x+y)²-16(x-y)² 4.16-(2a+3b)² 5.(a²+4)²-16a² 6.x²-xy+1/4y²
因式分解请帮下忙!因式分解:1.(x+y)²-4(x+y)-12 2.x²+(k+2)x+(k+1) 3.(x²+3x)²-8(x²+3x)-204.(t² +4t)² -2(t² +4t)-24 5.4a² b² -(a² +b² )²
2a(x²+1)²-2ax²因式分解
1.(a-b)/(a+b)×(a^4-a²b²)/a²-ab2.(x²+3x)/(x²+2x)-(x²-4)/(x²+4x+4)
因式分解:1.ab(c²+d²)+cd(a²+b²)2.(a-b)²-a²+b²3.x(x-1)+y(y+1)-2xy4.(c²-b+²d²-a²)²-4(ab-od)²5.a^4+2a³+3a²+2a+16.x³-7x+67.a²-20a+648.(x^4+2)²-9x^49.a²-b&
1.(3x²+2x-8)²-(x²-2x-8)²2.(x+2)(x+3)+x²-43.x²(a-b)+16(b-a)4.(x²+2x)²-7(x²+2x)-85.(x²+9y²)²-36x²y²6.(x-1)(x-2y-1)+y²
1.(3x²+10x²+13x-27)/(x²+2x-3)2.(2x²+x³-2)/(x²-1)3.已知A=(3x)²-21x³-2x²+11x-2 B=3x³-5x²-4x+1求a²/b²
分解因式:x^4-a²x²-b²x²+a²b²
求几题解法,(因式分解)急~1.(x²+4x+3)(x²+12x+35)+152.(a²+19a)²-408(a²+19a0-1248483.(ab-1)²+(a+b-2)(a+b-2ab)4.xy(x²-y²)+yz(y²-z²)+zx(z²-x²)
1.(ax+by)²+(bx-ay)²2.(x²-x)²-4(x²-x-1)3.4(x+y)²-9(x-y)²4.(a+b)(a-b)+4(b-1)5.x²+4xy+4y²-2x-4y-36.(x+1)(x+2)(x+3)(x+4)+17,3x²-11x+10
求几道因式分解1.(ax+by)²+(bx-ay)²2.(x²-x)²-4(x²-x-1)3.4(x+y)²-9(x-y)²4.(a+b)(a-b)+4(b-1)5.x²+4xy+4y²-2x-4y-36.(x+1)(x+2)(x+3)(x+4)+17,3x²-11x+10
-2a^3b+8a²b²-8ab^3 (7x²+2y²)²-(2x²+7y²)²
1.(b²+2a²)(2a²-b²) 2.(4x²-4y²)(x²+y²) 3.—(x-1)(x+1)-3(x+2)(x-2) 4.(5y²+4x²)[4y²+(2x-y)(-2x-y)]
1.(x²-2x+1-y²)/(x+y-1)=2.a²+2ab+b²+(a-2)²=0,则b=( )
1.因式分解(1) 1-4x²y²(2) 16m²+25n²+40mn(3) 2a³-12a²x+18ax²2.填空(1)9x²-( )+b²=( -b)²(2)x^4+4x²+( )=(x²+ )²(3)p²-3p+( )=(p- )²(4)25a²+24a+( )=5a+( )²麻烦写
初二下学期分解因式[数学]1.a(x-y)-b(y-x)+c(x-y)2.x(m+n)-y(n+m)+(m+n)3.(x+y)²-16(x-y)²4.a²(a-b)²-b²(a+b)²5.(x+y+z)²-(x-y-z)²6.x²y-2xy²+y³7.16-(2a+3b)²8.(a²+4)²-16a²9.
一道数学题快回答急(x³)²÷x²×x+x÷(-x)²(-x²) 小的×就是乘 3b-2a²-(-4a+a²+3b)+a² (-a)²×(a²)²÷a³ (-x)³×x²n-1+x²n×(x)²(注意那个x²后
1.x²-y²+6y-92.a²(a-b)+b²(b-a)