(3x-5y)²=0
3x-5y=0
所以y=3x/5
9x^2-25y^2+30xy=0
0
0
1个回答
-
00
相关问题
-
因式分解-25x^2-30xy-9y^200
-
因式分解x^2-6xy+9y^2-10x+30y+2500
-
若9x^2+y^2+24x-6y+25=0,则xy=00
-
x^2-2xy+3y^2=9｛4x^2-5xy+6y^2=3000
-
（x+y)^2=25,(x-y)^2=9求xy的值00
-
x+2y=xy=30(x>0,y>0),xy的最大值00
-
已知:x>0,y>0,且x- 10√xy+25y=0,求2x+√xy+3y/x+√xy-y00
-
(x^2-xy+0.25x^2)/4x^2-y^200
-
解方程组：｛x²-2xy+3y²=9 4x²-5xy+6y²=3000
-
3x^2+4xy--4y^2=0 (x≠0,y≠0),求9x^2-3xy∕18x^2+y^2的值00