Thực hiện các phép tính sau: c) 2x^2+4/x-3. 3x+1/x-1: x^2+2/ 6-2x;
Giải thích
c, 2x2+4x−3.3x+1x−1:x2+26−2x
=2x2+2.3x+1x−3.x−1.6−2xx2+2
=2x2+2.3x+1.−2x−3x−3.x−1.x2+2
=2.3x+1.−2x−1=−43x+1x−1
c, 2x2+4x−3.3x+1x−1:x2+26−2x
=2x2+2.3x+1x−3.x−1.6−2xx2+2
=2x2+2.3x+1.−2x−3x−3.x−1.x2+2
=2.3x+1.−2x−1=−43x+1x−1