(-2xy^2)^2×3x^2y÷(-x^3y^4)=

问题描述:

(-2xy^2)^2×3x^2y÷(-x^3y^4)=

(-2xy^2)^2×3x^2y÷(-x^3y^4)
=4x^2y^4×3x^2y÷(-x^3y^4)
=-12x^(2+2-3)y^(4+1-4)
=-12xy