169(x y)²-121(x-y)²计算

来源：学生作业帮编辑：大师作文网作业帮分类：数学作业时间：2024/11/20 10:45:48

169(x +y)²-121(x-y)²
=[13(x+y)+11(x-y)][13(x+y)-11(x-y)]
=(24x+2y)(2x+24y)
=4(12x+y)(x+12y)

计算(x²/x+2y)-x+2y-2 计算 [12(x+y)³(y-x)]³÷[4(x+y)²（x-y)]² 计算：(x+y)²-4(x+y)(x-y)+4(x-y)² 计算：(xy-x²)×x-y/xy 利用公式计算(x²-y²)÷(x+y) 计算：(x-y)(x²+xy+y²) 计算3x[xy-2x(1/y-x/3]+3y(x²-y²) 计算:1、(xy分之x²-y²)×(x-y分之x)-(y分之x)；计算(x²+y²)²(x+y)²(x-y)² 计算(x²-y²)(x+y)÷(x+y)²等于数学计算(x²-y²)(x+y)÷(x+y)² 用提公因式法计算：x(x-y)²-y(y-x)²