Thực hiện phép tính (2x+1/2x-1-2x-1/2x+1):4x/10x+5
Giải thích
2x+12x−1−2x−12x+1:4x10x+5 (dkxd:x≠±12)=2x+122x−12x+1−2x−122x+12x−1.10x+54x
=2x+12−2x−122x−12x+1.10x+54x
=2x+1+2x−12x+1−2x+12x−12x+1.10x+54x
=8x2x−12x+1.10x+54x
=8x2x−12x+1.52x+14x
=10x2x−1