设x=a2b2+5,y=2ab-a2-4a,若x>y,则实数a、b满足的条件是______.
设x=a2b2+5,y=2ab-a2-4a,若x>y,则实数a、b满足的条件是______.
设x=a²b²+5,y=2ab-a²-4a,若x>y,则实数a,b需满足什么条件?
x=a^2b^2+5,y=2ab-a^2-4a,若x>y,则实数a,b满足的条件是
已知实数a、b满足a2+b2+a2b2=4ab-1,则a+b的值为______.
设x=a^2*b^2+5, y=2ab-a^2-4a,若x>y,则实数a,b应满足的条件为?
设x=a^2b^2+5 y=2ab-a^2-4a,若a>y,则实数a,b应满足的条件为————?
已知实数a、b、x、y满足a+b=x+y=2,ax+by=5,则(a2+b2)xy+ab(x2+y2)=______.
已知实数a,b,x,y满足ax+by=3,ay-bx=5,则(a2+b2)(x2+y2)的值是______.
如果(a-2)x+(b+1)y=13是关于x,y的二元一次方程,则a,b满足______条件.
设实数X,Y满足条件X大于等于0,X小于等于Y,X+2Y-4小于等于,则Z=X+Y的最大值是
设集合A={y|y=x2+2x+a,x∈R},B={x|3-x≤0},若A⊆B,则实数a的取值范围是______.
已知a2b2+a2+b2+1=4ab,则a=______,b=______.