(Solved): Producers will supply x units of a certain commodity to the market when the price is p = S(x) dolla ...

Producers will supply x units of a certain commodity to the market when the price is p = S(x) dollars per unit, and consumers will demand (buy) x units when the price is p =D(x) dollars per unit, where p= S(x)=2x + 7.43 $ and p = D(x)= -0.21x2 -0.84x+50 $. Find the break even quantity