a)3/(2x^2+2x-12)-2/(5x^2+10x-15)=1/(3x^2-9x+6)
b)(2x+3)/(3x^3-24)+(7x-1)/(5x^2+10x+20)=7/(5x-10)
c) 1/(2x-4)-(2x+3)/(3x^2-12)=4/(5x+10)
d)1/(3x^2-6x-24)-2/(5x^2-20)=3/(4x^2-24x+32)
e) (x+2)/98+(x+4)/96=(x+6)/94+(x+8)/92
Loga
Sinh Học lớp 12
