<PRE><B>Question 734993</B>
{{{((a^3-ab^2)/(2a^2+3ab+b^2))*(((4a^2-b^2)/(a^2-2ab+b^2))/((a^2+a)/(a-1)))}}}



{{{(a(a^2-b^2)/(2a^2+3ab+b^2))*((((2a)^2-b^2)/(a-b)^2)/(a(a+1)/(a-1)))))}}}



{{{((a(a-b)(a+b))/(2a^2+2ab+ab+b^2))*((((2a-b)(2a+b))/((a-b)(a-b)))/(a(a+1)/(a-1)))))}}}


{{{((a(a-b)(a+b))/((2a^2+2ab)+(ab+b^2)))*((((2a-b)(2a+b)(a-1))/((a-b)(a-b)(a(a+1)))))}}}


{{{((cross(a)1cross((a-b))(a+b))/(2a(a+b)+b(a+b)))*(((2a-b)(2a+b)(a-1))/(cross((a-b))(a-b)(cross(a)(a+1))))}}}


{{{((cross((a+b))1)/(cross((a+b)1)cross((2a+b))))*(((2a-b)cross((2a+b))(a-1))/((a-b)(a+1)))}}}


{{{(1/1)*(((2a-b)(a-1))/((a-b)(a+1))))}}}


{{{((2a-b)(a-1))/((a-b)(a+1)))}}}



</PRE>