# What is the standard form of y=(2x+5)(2x-3) -3x^2+6x?

Apr 15, 2016

#x^2+10x-15

#### Explanation:

The standard form of an equation such as this is: $a {x}^{2} + b x + c$

By expanding and simplifying the question, we can get the answer:
$y = \left(2 x + 5\right) \left(2 x - 3\right) - 3 {x}^{2} + 6 x$
$= 4 {x}^{2} - 6 x + 10 x - 15 - 3 {x}^{2} + 6 x$
$= {x}^{2} + 10 x - 15$