160k views
2 votes
2/v-7+v-6/v^2-7v=4/v-7

User Verdigrass
by
4.5k points

2 Answers

4 votes

Answer:

v=0, v=7

Explanation:

User Carsten Gehling
by
4.3k points
2 votes

Answer:

vā‰ˆ -1.65573 ,vā‰ˆ6.91725

Explanation:


(2)/(v)-7+v-(6)/(v^2)-7v=(4)/(v-7)\\\mathrm{Find\:Least\:Common\:Multiplier\:of\:}v,\:v^2,\:v-7:\quad v^2\left(v-7\right)\\=(2)/(v)v^2\left(v-7\right)-7v^2\left(v-7\right)+vv^2\left(v-7\right)-(6)/(v^2)v^2\left(v-7\right)-7vv^2\left(v-7\right)=(4)/(v-7)v^2\left(v-7\right)\\Simplify\\=2v\left(v-7\right)-7v^2\left(v-7\right)-6v^3\left(v-7\right)-6\left(v-7\right)=4v^2\\\mathrm{Solve\:}\:2v\left(v-7\right)-7v^2\left(v-7\right)-6v^3\left(v-7\right)-6\left(v-7\right)=4v^2:\\


v ā‰ˆ -1.65573


v ā‰ˆ 6.91725

v=0, v=7

User Withtaker
by
4.0k points