已知实数x,y满足(x-7)²=121,(y+1)³=-0.064,求式子√(x-2)-√(x+10
已知实数x,y满足(x-7)²=121,(y+1)³=-0.064,求式子√(x-2)-√(x+10
已知4x²+y²-4x-6y+10=0,求(2x/3*√(9x)+y²√(x/y³
已知x,y满足x²+y²-4x-6y+13=0,求(-y/x³)³÷(-1/xy
已知:x+y+z=1,x²+y²+z²=2,x³+y³+z³
已知x,y,z为正整数,且满足x³-y³-z³=3xyz,x²=2(y+z),求
已知实数x,y满足x²+4y²=4.求f(x,y)=x²+2xy+4y²+x+2
已知x-y=1,x³-y³=2 1.求x²+y²的值 2.求x四次方+y四次方的
已知实数x,y满足√2x+y-5+(3x-2y+3)²=0,求3x-2/3y
已知实数x、y满足5x²-3xy+1/2y²-2x+1/2y+1/4=0 求x、y的值
已知实数x,y满足方程(x²+2x+3)(3y²+2y+1)=4/3,求x+y的值
已知实数X Y满足(X-7)平方=121,(Y+1)立方=-0.064,求式子根号X-2-根号X+10Y+3次根号245
已知x/y=3,求x²+2xy-3y²/x²-xy+y³的值