若a^2x+y-1=0,且A为不等于1的正数,|x+2|-a^0=0.求(x^3y)^3÷(-2x^3y^2)的值.
问题描述:
若a^2x+y-1=0,且A为不等于1的正数,|x+2|-a^0=0.求(x^3y)^3÷(-2x^3y^2)的值.
答
|x+2|-a^0=0|x+2|-1=0 x=-1或者x=-3若x=-1 a^2x+y-1=0 y=1+a^2 则原式=(x^3y)^3÷(-2x^3y^2)=-y^3÷2y^2=-0.5y=-0.5(1+a^2)若x=-3 a^2x+y-1=0 y=1+3a^2 则原式=(x^3y)^3÷(-2x^3y^2)=-0.5x^6y=-729(1+3a^2)/2...