22.已知x+4y=-1,xy=5,求(6xy+7y)+[8x-(5xy-y+6x)]的值.
22.已知x+4y=-1,xy=5,求(6xy+7y)+[8x-(5xy-y+6x)]的值.
已知x+4y=-1.xy=5.求代数式(6xy+7y)+[8x-(5xy-y+6x)]的值,
已知x+y=3,xy=1,求代数式5xy+4x+7y+6x-3xy-4xy+3y的值.
1.已知x+4y=-1 xy=5 求(6xy+7y)+[8x-(5xy-y-6x)]的值
已知x+4y=-1,xy=5,求(6xy+7y)+{8x-5xy-y+6x)}的值
已知x+4y=-1,xy=5,求(6xy+7y)+【8x-(5xy-y+6x)】的值
化简求值:已知x+4y=-1,xy=5,求(6xy+7y)+【8x-(5xy-y+6x)】的值
已知x+4y= ﹣1,xy=5 ,求代数式(6xy+7y)+[8x-(5xy-y+6x)]的值.
已知X+Y=6,xy=3求代数式(5XY+4X+7Y)+(6X-3XY)-(4XY-3Y)的值
已知:x-y=1,xy=-2,求(3x-4y+2xy)-(2x-5y+5xy)的值
已知:x-y=1,xy=-2,求(3x-4y 2xy)-(2x-5y 5xy)的值
x+y=8,xy=-2,求(5xy+4x+7y)+(6x-3xy)-(4xy-3y)的值