已知x²-4x+y²-10y+29=0求x²+2x³y²+x̾
已知x²-4x+y²-10y+29=0求x²+2x³y²+x̾
已知x/y=2,求2x(x+y)-y(x+y)/4x²-4xy+y²
已知4x²+y²-4x-6y+10=0求(2/3x(√9x)+(y²√x/y³)
已知4x²+y²-4x-6y+10=0,求(2/3√9x+y²√x/y³)-(x
已知x²+y²+5=2x+4y,求【2x²-(x-y)(x-y)】【(x+y-1)(x-y
已知x²-4x+y²-10y+29=0,求x²y²+2x³y³
请问已知x²-4x+29-10y+y²=0求x²y²+2x³y
已知x²+y²-2x+4y+5=0,求x+y
已知x²-y²=10,求[(x+y)³-2y(x+y)²-4(x+y)]÷(x+
已知x²+4x+y-2y+5=0求x+2y
已知实数x, y满足x²+y²-2x+6y+10=0,求y∧-x.
已知x²+y²+13-4x+6y=0,求(2x-y)²-2(2x-y)(x+2y)+(x+