Giải phương trình (4x-7)/(x^2+3x+2)-(9x^2-16x+4)/(x^3+3x^2+2x)=0
Giải thích
4x−7x2+3x+2−9x2−16x+4x3+3x2+2x=0x≠0x≠−1x≠−2⇔4x−7x+1x+2−9x2−16x+4xx+1x+2=0⇔x4x−7−9x2+16x−4xx+1x+2=0⇔4x2−7x−9x2+16x−4=0⇔5x2−9x+4=0⇔x−15x−4=0⇔x=1(tm)x=45(tm)
4x−7x2+3x+2−9x2−16x+4x3+3x2+2x=0x≠0x≠−1x≠−2⇔4x−7x+1x+2−9x2−16x+4xx+1x+2=0⇔x4x−7−9x2+16x−4xx+1x+2=0⇔4x2−7x−9x2+16x−4=0⇔5x2−9x+4=0⇔x−15x−4=0⇔x=1(tm)x=45(tm)