Giải phương trình (x+5)/(x^2-5x)-(x-5)/(2x^2+10x)
Giải thích
x+5x2−5x−x−52x2+10x=x+252x2−50x≠0x≠±5⇔x+5xx−5−x−52xx+5=x+252x−5x+5⇔2x+5x+5−x−52=xx+25⇔2x2+20x+50−x2+10x−25=x2+25x⇔5x=−25⇔x=−5(tm)
x+5x2−5x−x−52x2+10x=x+252x2−50x≠0x≠±5⇔x+5xx−5−x−52xx+5=x+252x−5x+5⇔2x+5x+5−x−52=xx+25⇔2x2+20x+50−x2+10x−25=x2+25x⇔5x=−25⇔x=−5(tm)