# What is the standard form of y= (x+2) (2x+5) ?

$y = 2 {x}^{2} + 9 x + 10$
We begin with $\left(x + 2\right) \left(2 x + 5\right)$. To simplify this, we just need to multiply out the two parentheses. That gives us $2 {x}^{2} + 5 x + 4 x + 10$. If we combine like-terms, we have $2 {x}^{2} + 9 x + 10$. That's it; we're done!