我哭,我打字容易吗?[2+2k(5k-3)]^2-4(1+k^2)(5k-3)^2-24=0 [1+k(5k-3)]^2-(1+k^2)(5k-3)^2-6=01+2k(5k-3)+k^2(5k-3）^2-(1+k^2)(5k-3)^2-6=02k(5k-3)+（k^2-1-k^2）(5k-3)^2-5=0（5k-3)^2-2k(5k-3）+5=015k^2-24k+14...
[2+2k(5k-3)]^2-4(1+k^2)(5k-3)^2=0
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