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V2 – v – 20 = 0 solve the equation by factoring
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V2 – v – 20 = 0 solve the equation by factoring

User Jonhurlock
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v^2-v-20=0\\v^2+4v-5v-20=0\\v(v+4)-5(v+4)=0\\(v-5)(v+4)=0\\v=5 \vee v=-4

User James Dean
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