x^4-16y^4
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x^4-16y^4
x^4-16y^4
=(x^2+4y^2)*(x^2-4y^2)
=(x^2+4y^2)*(x+2y)*(x-2y)
=(x^2+4y^2)*(x^2-4y^2)
=(x^2+4y^2)*(x+2y)*(x-2y)
x(x-y)+4(y-x)因式分解
x^2-y^2/x+y-4x(x-y)+y^2/2x-y,
x^4-16y^4
(2x+y)³-(x-2y)³因式分解 -4x³y+16x²y²-16
3分之2(X-Y)-4分之X+Y=-1,6(X+Y)-4(2X-Y)=16
解方程组:2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16
若x*x+y*y-4x+16y+13=0 ,则x=____ y=____
因式分解 (1).(x+y)(x+y-6)+9 (2).x²-16y²-x-4y
4x-(2x+y+16)/2=-6y 2x+3y=7-x-2y
解方程组 10(x-y)=3(x+y)+15 6(x+y)=4(2x-y)+16
x*x+4y*y+2x*x-4y+2=0求根号下5x*x+16y*y的值快啊
已知集合A={(x,y)| (y-3)/ (x-1)=2,x,y∈R},B={(x,y)| 4x+ay=16,x,y∈