3t/4t-6,t+1/4t^2-9
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3t/4t-6,t+1/4t^2-93t/4t-6,t+1/4t^2-93t/4t-6,t+1/4t^2-94t-6=2(2t-3)4t²-9=(2t+3)(2t-3)最简公分母是2(2t+
3t/4t-6,t+1/4t^2-9
3t/4t-6,t+1/4t^2-9
3t/4t-6,t+1/4t^2-9
4t-6=2(2t-3)
4t²-9=(2t+3)(2t-3)
最简公分母是2(2t+3)(2t-3)
所以3t/(4t-6)=3t(2t+3)/2(2t+3)(2t-3)
(t+1)/(4t²-9)=2(t+1)/2(2t+3)(2t-3)