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| 1. |
1/(2x-3)+1/x-5=1 verify that this is a real root |
| Answer» 1/(2x-3)+1/(x-5)=1(x-5+2x-3)/(2x-3)(x-5)=1(3x-8)/2x2-10x-3x+5=1(3x-8)=2x2-13x+152x2-10x+23=0Here a=2 . b=-10,c=23D=b२-4ac =(-10)२-4(2)(23) =100-148 =-84 D<0Hence,in the given equation has no real root | |