(4-a²)(a-2)+(a²+6a+9)(2a+6)+2a=1先化简再求值(4-a²)(a-2)+(a²+6a+9)(2a+6)+2 a=1
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(4-a²)(a-2)+(a²+6a+9)(2a+6)+2a=1先化简再求值(4-a²)(a-2)+(a²+6a+9)(2a+6)+2 a=1
(4-a²)(a-2)+(a²+6a+9)(2a+6)+2a=1先化简再求值
(4-a²)(a-2)+(a²+6a+9)(2a+6)+2 a=1
(4-a²)(a-2)+(a²+6a+9)(2a+6)+2a=1先化简再求值(4-a²)(a-2)+(a²+6a+9)(2a+6)+2 a=1
(4-a²)(a-2)+(a²+6a+9)(2a+6)+2
=(a-2)²(a+2)+(a+3)²2*(a+3)+2
=(a-2)²(a+2)+2(a+3)³+2
=(1-2)²(1+2)+2(1+3)³+2
=3+2*4³+2
=133