(2x-y)(2x+y)=-5/2(2y^2-64/5) 求(x-y)² 2x(y-1)+4(1/2x-1)=0 求x^4+y^4-2x²y²七下第一章整式的运算测试题
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![(2x-y)(2x+y)=-5/2(2y^2-64/5) 求(x-y)² 2x(y-1)+4(1/2x-1)=0 求x^4+y^4-2x²y²七下第一章整式的运算测试题](/uploads/image/z/2729512-64-2.jpg?t=%282x-y%29%282x%2By%29%3D-5%2F2%282y%5E2-64%2F5%29+%E6%B1%82%28x-y%29%26%23178%3B+2x%28y-1%29%2B4%281%2F2x-1%29%3D0+%E6%B1%82x%5E4%2By%5E4-2x%26%23178%3By%26%23178%3B%E4%B8%83%E4%B8%8B%E7%AC%AC%E4%B8%80%E7%AB%A0%E6%95%B4%E5%BC%8F%E7%9A%84%E8%BF%90%E7%AE%97%E6%B5%8B%E8%AF%95%E9%A2%98)
(2x-y)(2x+y)=-5/2(2y^2-64/5) 求(x-y)² 2x(y-1)+4(1/2x-1)=0 求x^4+y^4-2x²y²七下第一章整式的运算测试题
(2x-y)(2x+y)=-5/2(2y^2-64/5) 求(x-y)² 2x(y-1)+4(1/2x-1)=0 求x^4+y^4-2x²y²
七下第一章整式的运算测试题
(2x-y)(2x+y)=-5/2(2y^2-64/5) 求(x-y)² 2x(y-1)+4(1/2x-1)=0 求x^4+y^4-2x²y²七下第一章整式的运算测试题
(2x-y)(2x+y)=-5/2(2y^2-64/5)
4X^2-y^2=-5y^2+32
4X^2+4y^2=32
X^2+y^2=8
你的题有没有符号错的地方,
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
y+y'-2y=2x
微分方程y - 2y' + y = x
2(x-y)=5y,x-y=-5
化简y(x+y)+(x+y)(x-y)-x^2
x-y / 5y= (y-x)^2 / ( )
x+y/2+x-y/6=5 2(x+y)-3(x-y)=-2
解方程组(x+y)(x-2y)=-5 (x-y)(x+2y)=7
3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2
(x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2
x*x+2x+y*y-4y+5=0 x= y=
4(x-y)-3(x-y)=9 5(x-y)+2(x-y)=11
3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27
{6(x-y)-7(x+y)=21 {2(x-y)-5(x+y)=-1
6(x-y)-2(x+y)=14 3(x-y)+(x+y)=5
求(X+Y)(X-Y)(X²+Y²),X=5 Y=2,
【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y)