(t-1)^2+4(t-1)+1怎么化简成t^2+2t-2
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(t-1)^2+4(t-1)+1怎么化简成t^2+2t-2(t-1)^2+4(t-1)+1怎么化简成t^2+2t-2(t-1)^2+4(t-1)+1怎么化简成t^2+2t-2乘出来原式=t²
(t-1)^2+4(t-1)+1怎么化简成t^2+2t-2
(t-1)^2+4(t-1)+1怎么化简成t^2+2t-2
(t-1)^2+4(t-1)+1怎么化简成t^2+2t-2
乘出来
原式=t²-2t+1+4t-4+1
=t²+2t-2
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(t-1)^2+4(t-1)+1怎么化简成t^2+2t-2
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