-2x∧6＋x∧5y∧2-x∧2y^5一1是几次几项式

计算:(x-y)∧3 × (y-x)∧2 × (y-x)∧5 -2x∧6＋x∧5y∧2-x∧2y^5一1是几次几项式 怎么因式分解6(x-y)-9-(x-y)∧2 已知-x+2y=5,那么5(x一2y)∧2一3(x一2y)一60的值为( ) A已知-x+2y=5,那么5(x一2y)∧2一3(x一2y)一60的值为( ) A -17 B -7 C -3 D 7 己知{2x+y一5≥0;3x一y一5≤0;x一2y十5≥0}求x∧2十y∧2的最小值最大值 已知实数x, y满足x²+y²-2x+6y+10=0,求y∧-x. 先化简,再求值(x+2y)∧2-(x+y)(3x-y)-5y∧2,其中x+-2,y=1/2过程写不写无所谓!急 先化简,再求值(x+2y)∧2-(x+y)(3x-y)-5y∧2,其中x+-2,y=1/2急 [2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2 18y(x-y)∧2-12(x-y)∧3=6(x-y)∧2_________________ 填空题 因式分解 快 一分钟之内 （2x+y)∧2-(x+2y)∧2 2(2x+3y)(3x+2y)-(6x-y)(2x-5y) x+y/2+x-y/6=5 2(x+y)-3(x-y)=-2 {6(x-y)-7(x+y)=21 {2(x-y)-5(x+y)=-1 因式分解x次方-y次方+5x-y+6【x-y+2】【x+y+3】 6(x-y)-2(x+y)=14 3(x-y)+(x+y)=5 y=｜x∧2-4x +5｜分段函数 下列各题因式分解正确的是（　　）A.（x-y）∧2+10（y-x）+25=（x-y+5）∧2B.（x-y）∧2+10（x-y）+25=（y-x-5）∧2C.（x-y）∧2-10（y-x）+25=（x-y-5）∧2D.（x-y）∧2-10（x-y）+25=（x-y+5）∧2