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Sophieguven Sophieguven
  • 07-04-2015
  • Mathematics
Answered

2v²+5v-7=0 please help!!

Verified Answer :

konrad509
konrad509 konrad509
  • 07-04-2015

\(2v^2+5v-7=0\\ 2v^2-2v+7v-7=0\\ 2v(v-1)+7(v-1)=0\\ (2v+7)(v-1)=0\\ v=-\dfrac{7}{2} \vee v=1\)

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