Evaluate
-20y^{2}+\frac{8478y}{47}
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-20y^{2}+\frac{8478y}{47}
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\frac{940+2}{47}\times 9y-20y^{2}
Multiply 20 and 47 to get 940.
\frac{942}{47}\times 9y-20y^{2}
Add 940 and 2 to get 942.
\frac{8478}{47}y-20y^{2}
Multiply \frac{942}{47} and 9 to get \frac{8478}{47}.
\frac{940+2}{47}\times 9y-20y^{2}
Multiply 20 and 47 to get 940.
\frac{942}{47}\times 9y-20y^{2}
Add 940 and 2 to get 942.
\frac{8478}{47}y-20y^{2}
Multiply \frac{942}{47} and 9 to get \frac{8478}{47}.
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