Giải phương trình 1+x/(3-x)=5x/(x+2)/(3-x)
Giải thích
1+x3−x=5xx+23−x+2x+2x≠−2x≠3⇔x+23−x+xx+2x+23−x=5x+23−xx+23−x⇒−x2+x+6+x+2x=5x+6−2x⇔0x=0⇒x∈ℝS=x∈ℝ/x≠−2;3
1+x3−x=5xx+23−x+2x+2x≠−2x≠3⇔x+23−x+xx+2x+23−x=5x+23−xx+23−x⇒−x2+x+6+x+2x=5x+6−2x⇔0x=0⇒x∈ℝS=x∈ℝ/x≠−2;3