5^2x=16,5^y=2,5^2x-y=8
若5^x=4,5^y=2,5^2x-y的值等于
2个回答
相关问题
-
若3x+5y+6z=5,4x+2y+z=2,则x+y+z的值等于( )
-
若3x+5y+6z=5,4x+2y+z=2,则x+y+z的值等于【】
-
若3x+5y+6z=5,4x+2y+z=2,则x+y+z的值等于( )
-
若x+y=-1,则x4+5x3y+x2y+8x2y2+xy2+5xy3+y4的值等于( )
-
若x/y=2/5,求3x-2y/5x+4y的值
-
若4x+3y+5=0,则3(8y-x)-5(x+6y-2)的值等于______.
-
若4x+3y+5=0,则3(8y-x)-5(x+6y-2)的值等于______.
-
若x^2+y^2+5/4=2x+y,求x^Y+y^x的值?
-
若|2x+3|+[(2x+y-4/5)*(2x+y-4/5)]=o,则x-y的值是多少
-
若x^2-4x+y^2+2y+5=0,求x,y的值