Thực hiện phép tính 1/x-5x^2-25x-15/25x^2-1
Giải thích
1x−5x2−25x−1525x2−1=1x1−5x+25x−151−5x1+5x=1+5x+x25x−15x1−5x1+5x=1+25x2−10xx1−5x1+5x=(1−5x)2x1−5x1+5x=1−5xx1+5x
1x−5x2−25x−1525x2−1=1x1−5x+25x−151−5x1+5x=1+5x+x25x−15x1−5x1+5x=1+25x2−10xx1−5x1+5x=(1−5x)2x1−5x1+5x=1−5xx1+5x