原式=4a(2-x)^2-2b(2-x)^3
=2(2-x)^2*(2a-b(2-x))
=2(2-x)^2*(2a-2b+bx)2010*2012與2008*2014哪個大2010*2012=(2011-1)(2011+1)=2011^2-12008*2014=(2011-3)(2011+3) =2011^2-92011^2-1>2011^2-92010*2012>2008*2014(a+1)(a^2+1)(a^3+1)*......*(a^2013+1)原式=(a-1)(a+1)*...*(a^2013+)/(a-1=(a^2-1)(a^2+1)*...*(a^2013+1)/(a-1)=(a^2013-1)(a^2013+1)/(a-1)=(a^4026-1)/(a-1)(3x-2y)(9x^2+6xy+4y^2)原式=(3x)^3-(2y)^3=27x^3-8y^3公式是：(a-b)(a^2+ab+b^2)=a^3-b^3絕對值{2012+5/3[(-3/5)^2+(-1/2)^3÷(-0.625)]÷(-2又4/5)}/[-(-1)^2012-(1/2-7/6)^4*(1又5/8-5)]原式=絕對值{2012+5/3[9/25+1/8÷5/8]*(-5/14)}/[-1-16/81*(-27/8) =絕對值[2012+(5/3)*(14/25)*(-5/14)]/(-1+2/3)=絕對值(2012-1/3)/(-1/3)=(2012-1/3)*3=6036-1=6035