132+132+65489-/x/x+y=?

132+132+65489-/x/x+y=?
132+132+65489-/x/x+y=?

132+132+65489-/x/x+y=?
132+132+65489-/x/x+y

？？、题目不清楚

132+132+65489-/x/x+y=? 初二上学期方程题 4x+y=5 5x+4y=63x-2y=1 2x+3y=13x-2y=7 7x+5y=32x+3y=17 2x-y=-4x+5y=6 2x+y=23x-6y=4 3x+2y=52x+y=73x-4y=53x+y=1x-2y=-1x+y=42x+3y=92x-3y=74x+5y=3x+y=20004x+6y=90003x+5y=113x-2y=42x+3y=215x-2y=5x+y=54x+3y=182x+3y=16x+4y=132x+3y=40x {(x,y) |x|+|y| x>y?x:y 急 x,y,z均为正整数,x>=y,y>=z,z>=8 x+3y-z=急x,y,z均为正整数,x>=y,y>=z,z>=8x+3y-z=132,请问1.x+y+z有最小值782.x+y+z有最大值1343.洽有一组解(x,y,z)使得x+y+z有最大值4.x+3y有最小值1405.x+2y有最大值130 （x+6)+3y+18=132 x^/y-x-y^/y-x化简. 化简x(y-x)-y(x-y) 行列式计算 x y x+y y x+y x x+y x y|x y x+y ||y x+y x ||x+y x y | y/(x+y)-x/(x-y) 已知x+y=30,x-y=20,求2(x-2y)的二次方-132的值? 已知x+y=30,x-y=20,求2（x-2y）的平方-132的值 已知x+y=30,x-y=20,则2（x-2y）-132的值为_____. 因式分解x(x+y)(x-y)-x(x+y)^2 x(x+y)(x-y)-x(x+y)的平方 x(x+y)(x-y)-x(x+y)² 因式分解 x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2 ①5x-4y+4z=132x+7y-3z=193x+2y-z=18②y=2x-75x+3y+2z=23x-4z=4