若10∧x＝2,10∧y＝3,则10∧3x-4y／2＝

若10∧x＝2,10∧y＝3,则10∧3x-4y／2＝ 若x-y=2,x²-y²=10,则3x-y＝ 若x∧2-4y∧2=15,2y-x＝3,则x+2y＝ 若x-y不等于0,2x-3y=0,则分式(10x-11y)/(x-y)的值是（）?(10x-11y)/(x-y) =[(8x-8y)+(2x-3y)]/(x-y) =8为什么8X-8Y=8？(10x-11y)/(x-y)=[(8x-8y)+(2x-3y)]/(x-y)=8+(2x-3y)]/(x-y)=8+0=8 若x+y＝7,x-y＝3,求xy,x∧2-y∧2和x∧2+y∧2的值 若x-y=2,x²-y²=10,则3x+y等于 若x/2=y/3,且x+y=10,则x=?y=? 若【2x²-3y²-10y+5】²+根号x-2y,则x= y= 因式分解25（x-y）∧2+10（y-x）+1 3x∧3-12x∧2y+12xy∧2 X＋y＝2/3 x∧2＋y∧2＝1联立解X和y 已知实数x, y满足x²+y²-2x+6y+10=0,求y∧-x. 若X+2Y+3Z＝10,4X+3Y+2Z＝15则X+Y+Z等于多少? [2X+(Y-10)][2X-(Y-10)]-(3X+Y)(3X-Y) 已知2x-y=10 求代数式[(x∧2+y∧2)-(x-y)∧2+2y(x-y)]÷4y的值 5x^3y(x-y)^3-10x^4y^3(y-x)^2因式分解 5x^3y(x-y)^3-10x^4y^3(y-x)^2 (x+5y)^+(2x+10y)(3x-y)+(3x-y)^ (x+5y)²-(2x+10y)(3x-y)+(3x-y)²