Sophieguven
Sophieguven
07-04-2015
Mathematics
Answered
2v²+5v-7=0 please help!!
Answer :
konrad509
konrad509
07-04-2015
[tex]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[/tex]
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