[(x^2+3)^2+(x^2-3)^2] x-1,并求出当x=2时的值 - -

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[(x^2+3)^2+(x^2-3)^2]x-1,并求出当x=2时的值--[(x^2+3)^2+(x^2-3)^2]x-1,并求出当x=2时的值--[(x^2+3)^2+(x^2-3)^2]x-1,并

[(x^2+3)^2+(x^2-3)^2] x-1,并求出当x=2时的值 - -
[(x^2+3)^2+(x^2-3)^2] x-1,并求出当x=2时的值 - -

[(x^2+3)^2+(x^2-3)^2] x-1,并求出当x=2时的值 - -
=(x^4+6x^2+9+x^4-6x^2+9)x-1
=(x^4+18)x-1
=(2^4+18)*2-1
=34*2-1
=68-1
=67