计算 ( x-2y )^4 ÷ ( 2y-x )^ 2 ÷ ( x-2y )
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/26 05:23:05
计算(x-2y)^4÷(2y-x)^2÷(x-2y)计算(x-2y)^4÷(2y-x)^2÷(x-2y)计算(x-2y)^4÷(2y-x)^2÷(x-2y)结果:x-2y代数式子你看不惯,可以这样子:
计算 ( x-2y )^4 ÷ ( 2y-x )^ 2 ÷ ( x-2y )
计算 ( x-2y )^4 ÷ ( 2y-x )^ 2 ÷ ( x-2y )
计算 ( x-2y )^4 ÷ ( 2y-x )^ 2 ÷ ( x-2y )
结果:x-2y
代数式子你看不惯,可以这样子:令m=x-2y,
原式化为:m^4÷(-m)^2÷m=m^4÷m^2÷m=m^2÷m=m
也就是:m^4÷m^2÷m=m^(4-2-1)=m
底相同的指数除法即指数相减,乘法是相加.如x^3*x^6=x^9.
令x-2y=A
=A^4/A^2/A
=A
=x-2y
设x-2y=a
计算:[(x+y)³-2(x+y)²-4(x+y)]÷(x+y)
计算[(x+y)的立方-2(x+y)的平方-4(x+y)]÷(-x-y)
计算:y×(y/x)^3÷[-(x^2)/y]^-2
计算:2xy/(x+y)².(x+y)/4y
计算 ( x-2y )^4 ÷ ( 2y-x )^ 2 ÷ ( x-2y )
计算:16(2x+y)^3÷(-4x-2y)^2·(2x-y)
(4x^2y+x^3y^3)÷(-2x^2y)计算
计算[(x+y)平方-(x-y)平分-4x平分y平分]÷(2xy)
计算4(x+y)^5(x-y)^4÷[2(x+y)³*(y-x)²]
计算:(x-y)^7÷(y-x)^6+(-x-y)^3÷(x+y)^2
计算(x-y)^7÷(y-x)^6+9-x-y)^3÷(x+y)^2
[(2x+y)(x-3y)+y(x+3y)]÷(2x)计算,
计算[(x+2y)²-(x+y)(x-y)-5y²]÷(2x)
计算(2x-3y)(x+4y)-(3x+y)(x-2y)(2x-3y)(x+4y)-(3x+y)(x-2y)
计算:(x+y/x-y)÷(xy+x^2)
(x-3y)(y+2x)-(4y-3x)(3x+4y)计算
计算:(x-y)^2*(x+y)^3*(-x-y)^3*(y-x)^4
计算:y-x分之x+y+x-y分之y-y-x分之2x-y