Quy đồng mẫu các phân thức sau: x/-4(x^2+3x+2); x^2/ 6(x^2+5x+6);x^3/ -8(x^2+4x+3)
Giải thích
−4x2+3x+2=−4x+1x+2
6x2+5x+6=6x+2x+3−8x2+4x+3=−8x+1x+3
MTC: −24x+1x+2x+3x−4x2+3x+2=6xx+3−24x+1x+2x+3x26x2+5+6=−4x2x+1−24x+1x+2x+3x3−8x2+4x+3=3x3x+2−24x+1x+2x+3