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57=-3(4v+1)2v
We move all terms to the left:
57-(-3(4v+1)2v)=0
We calculate terms in parentheses: -(-3(4v+1)2v), so:We get rid of parentheses
-3(4v+1)2v
We multiply parentheses
-24v^2-6v
Back to the equation:
-(-24v^2-6v)
24v^2+6v+57=0
a = 24; b = 6; c = +57;
Δ = b2-4ac
Δ = 62-4·24·57
Δ = -5436
Delta is less than zero, so there is no solution for the equation
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