Question

【（-3xy）^2·x^4-2x^2(3xy^2)^2·y/2】÷（-3x^2y）^2的麻烦计算下过程

Answer 1

【（-3xy）^2·x^4-2x^2(3xy^2)^2·y/2】÷（-3x^2y）^2 = [9x^2 y^2 * x^4 - 2x^2 * 9x^2 y^4 * y / 2] ÷(9 x^4 y^2) = [9 x^6 y^2 - 9 x^4 y^5] ÷(9 x^4 y^2) = x^2 - y^3