Question

(3x^2y^3)/(2xy)^2=?(3x^2y^2)/(xy)*(1/y)=?x^2y-5x^2y+3x^y=?(6

Answer 1

(3x^2y^3)/(2xy)^2=3y/2;

(3x^2y^2)/(xy)*(1/y)=3x;

x^2y-5x^2y+3x^2y=-x²y;

(6x^2y-4xy^2)/2xy=3x-2y;

(-3/4x)(8x^2-4)=-6x³+3x;

(a^2-b^2)^2/(a+b)^2=(a-b)²;

多项式a-4a^2b-5是__3___次_3____项式

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