Which expression is equivalent to 2x^{2}+9x+4?

\left(2x-1\right)\left(x+4\right)
\left(2x+1\right)\left(x-4\right)
\left(2x+1\right)\left(x+4\right)
\left(2x-1\right)\left(x-4\right)

1 answer

\left(2x+1\right)\left(x+4\right)