已知x²+y²-6x+4y+13=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)²已知x²+y²-6x+4y+13=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)²
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 02:39:53
![已知x²+y²-6x+4y+13=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)²已知x²+y²-6x+4y+13=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)²](/uploads/image/z/958604-68-4.jpg?t=%E5%B7%B2%E7%9F%A5x%26sup2%3B%2By%26sup2%3B-6x%2B4y%2B13%3D0%2C%E6%B1%82%282x-y%29%26sup2%3B-2%282x-y%29%28x%2B2y%29%2B%28x%2B2y%29%26sup2%3B%E5%B7%B2%E7%9F%A5x%26sup2%3B%2By%26sup2%3B-6x%2B4y%2B13%3D0%2C%E6%B1%82%282x-y%29%26sup2%3B-2%282x-y%29%28x%2B2y%29%2B%28x%2B2y%29%26sup2%3B)
x){}K+ԊK+!YIγMFP)#OBۨRSBAhMR>5Fulu=bOM#BXSDhkDjijTj 4if[cH[]#Zvlx9}E3XW |vʳOv2/.H̳
C`d⧭K E&
已知x²+y²-6x+4y+13=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)²已知x²+y²-6x+4y+13=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)²
已知x²+y²-6x+4y+13=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)²
已知x²+y²-6x+4y+13=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)²
已知x²+y²-6x+4y+13=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)²已知x²+y²-6x+4y+13=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)²
由已知可得(X-3)(X-3)+(Y+2)(y+2)=0,即可得X=3.Y=-2,待到问题中即可得到答案为1
由已知可得(X-3)(X-3)+(Y+2)(y+2)=0,即可得X=3.Y=-2,代入可得到答案为1